Para-Chlorophenylpiperazine

Chemical compound

none

Identifiers

IUPAC name

1-(4-chlorophenyl)piperazine

CAS Number

38212-33-8^Y
38869-46-4 (dihydrochloride)

PubChem CID

97478

ChemSpider

87985

UNII

FMD47JE5C3

CompTox Dashboard (EPA)

DTXSID90191592

ECHA InfoCard100.155.613

Chemical and physical dataFormulaC₁₀H₁₃ClN₂Molar mass196.68 g·mol⁻¹3D model (JSmol)

Interactive image

SMILES

Clc1ccc(cc1)N2CCNCC2

para-Chlorophenylpiperazine (pCPP) is a psychoactive drug of the phenylpiperazine class.^[1] It is relatively obscure, with limited human use, and produces slightly psychedelic effects.^{[citation needed]} It has been encountered in illicit capsules as a recreational drug similarly to other piperazines like mCPP.^[1] Scientific research has demonstrated pCPP to have serotonergic effects, likely acting as a non-selective serotonin receptor agonist and/or releasing agent.^[2]^[3]

A known use has been in the synthesis of L-745,870.

References

^ ^a ^b "www.emcdda.europa.eu" (PDF).^{[dead link]}
^ Fuller RW, Snoddy HD (July 1980). "Comparative effects of p-chloroamphetamine and 1-(p-chlorophenyl)piperazine on 5-hydroxyindole concentration in rat brain". Research Communications in Chemical Pathology and Pharmacology. 29 (1): 201–4. PMID 6157183.
^ Maj J, Lewandowska A (1980). "Central serotoninmimetic action of phenylpiperazines". Polish Journal of Pharmacology and Pharmacy. 32 (4): 495–504. PMID 7255267.

Hallucinogens

Psychedelics
(5-HT_2A
agonists)

Benzofurans

Lyserg‐
amides

Phenethyl‐
amines

2C-x

2C-B
2C-B-AN
2C-Bn
2C-Bu
2C-C
2C-CN
2C-CP
2C-D
2C-E
2C-EF
2C-F
2C-G
2C-G-1
2C-G-2
2C-G-3
2C-G-4
2C-G-5
2C-G-6
2C-G-N
2C-H
2C-I
2C-iP
2C-N
2C-NH2
2C-O
2C-O-4
2C-P
2C-Ph
2C-SE
2C-T
2C-T-2
2C-T-3
2C-T-4
2C-T-5
2C-T-6
2C-T-7
2C-T-8
2C-T-9
2C-T-10
2C-T-11
2C-T-12
2C-T-13
2C-T-14
2C-T-15
2C-T-16
2C-T-17
2C-T-18
2C-T-19
2C-T-20
2C-T-21
2C-T-22
2C-T-22.5
2C-T-23
2C-T-24
2C-T-25
2C-T-27
2C-T-28
2C-T-30
2C-T-31
2C-T-32
2C-T-33
2C-TFE
2C-TFM
2C-YN
2C-V

25x-NBx

25x-NB	25B-NB 25C-NB
25x-NB3OMe	25B-NB3OMe 25C-NB3OMe 25D-NB3OMe 25E-NB3OMe 25H-NB3OMe 25I-NB3OMe 25N-NB3OMe 25P-NB3OMe 25T2-NB3OMe 25T4-NB3OMe 25T7-NB3OMe 25TFM-NB3OMe
25x-NB4OMe	25B-NB4OMe 25C-NB4OMe 25D-NB4OMe 25E-NB4OMe 25H-NB4OMe 25I-NB4OMe 25N-NB4OMe 25P-NB4OMe 25T2-NB4OMe 25T4-NB4OMe 25T7-NB4OMe 25TFM-NB4OMe
25x-NBF	25B-NBF 25C-NBF 25D-NBF 25E-NBF 25H-NBF 25I-NBF 25P-NBF 25T2-NBF 25T7-NBF 25TFM-NBF
25x-NBMD	25B-NBMD 25C-NBMD 25D-NBMD 25E-NBMD 25F-NBMD 25H-NBMD 25I-NBMD 25P-NBMD 25T2-NBMD 25T7-NBMD 25TFM-NBMD
25x-NBOH	25B-NBOH 25C-NBOH 25CN-NBOH 25D-NBOH 25E-NBOH 25F-NBOH 25H-NBOH 25I-NBOH 25P-NBOH 25T2-NBOH 25T7-NBOH 25TFM-NBOH
25x-NBOMe	25B-NBOMe 25C-NBOMe 25CN-NBOMe 25D-NBOMe 25E-NBOMe 25F-NBOMe 25G-NBOMe 25H-NBOMe 25I-NBOMe 25iP-NBOMe 25N-NBOMe 25P-NBOMe 25T-NBOMe 25T2-NBOMe 25T4-NBOMe 25T7-NBOMe 25TFM-NBOMe
Atypical structures	25B-N1POMe 25B-NAcPip 25B-NB23DM 25B-NB25DM 25C-NBCl 25C-NBOEt 25C-NBOiPr 25I-N2Nap1OH 25I-N3MT2M 25I-N4MT3M 25I-NB34MD 25I-NBAm 25I-NBBr 25I-NBMeOH 25I-NBTFM 2CBCB-NBOMe 2CBFly-NBOMe 4-EA-NBOMe 5-APB-NBOMe 5MT-NBOMe C30-NBOMe DOB-NBOMe DOI-NBOMe FECIMBI-36 MDPEA-NBOMe N-Ethyl-2C-B NBOMe-escaline NBOMe-mescaline ZDCM-04

25x-NMx

25B-NMe7BF
25B-NMe7BT
25B-NMe7Bim
25B-NMe7Box
25B-NMe7DHBF
25B-NMe7Ind
25B-NMe7Indz
25B-NMePyr
25I-NMe7DHBF
25I-NMeFur
25I-NMeTHF
25I-NMeTh

N-(2C)-fentanyl

N-(2C-B) fentanyl
N-(2C-C) fentanyl
N-(2C-D) fentanyl
N-(2C-E) fentanyl
N-(2C-G) fentanyl
N-(2C-H) fentanyl
N-(2C-I) fentanyl
N-(2C-IP) fentanyl
N-(2C-N) fentanyl
N-(2C-P) fentanyl
N-(2C-T) fentanyl
N-(2C-T-2) fentanyl
N-(2C-T-4) fentanyl
N-(2C-T-7) fentanyl
N-(2C-TFM) fentanyl

3C-x

4C-x

4C-B
4C-C
4C-D
4C-E
4C-I
4C-N
4C-P
4C-T-2

DOx

DOT
DOB
DOC
DOEF
DOET
DOF
DOI
DOiPR
DOM
DON
DOPR
DOTFM
MEM

HOT-x

MDxx

Mescaline (subst.)

TMAs

TMA
TMA-2
TMA-3
TMA-4
TMA-5
TMA-6

Others

2C-B-BUTTERFLY
2C-B-DragonFLY
2C-B-DragonFLY-NBOH
2C-B-FLY-NB2EtO5Cl
2CB-5-hemifly
2CB-Ind
2CD-5EtO
2-TOET
5-TOET
2-TOM
5-TOM
BOB
BOD
βk-2C-B
βk-2C-I
DESOXY
DMCPA
DMBMPP
DOB-FLY
Fenfluramine
Ganesha
Macromerine
MMA
TCB-2
TOMSO

Piperazines

Tryptamines

alpha-alkyltryptamines	4,5-DHP-α-MT 5-MeO-α-ET 5-MeO-α-MT α-ET α-MT
x-DALT	(Daltocin) 4-HO-DALT (Daltacetin) 4-AcO-DALT 5-MeO-DALT DALT
x-DET	(Ethacetin) 4-AcO-DET (Ethocin) 4-HO-DET 5-MeO-DET (T-9) DET (Ethocybin) 4-PO-DET
x-DiPT	(Ipracetin) 4-AcO-DiPT (Iprocin) 4-HO-DiPT 5-MeO-DiPT DiPT
x-DMT	4,5-DHP-DMT 2,N,N-TMT 4-AcO-DMT 4-HO-5-MeO-DMT 4,N,N-TMT 4-Propionyloxy-DMT 5,6-diBr-DMT 5-AcO-DMT 5-Bromo-DMT 5-MeO-2,N,N-TMT 5-MeO-4,N,N-TMT 5-MeO-α,N,N-TMT 5-MeO-DMT 5-N,N-TMT 7,N,N-TMT α,N,N-TMT (Bufotenin) 5-HO-DMT DMT Norbaeocystin (Psilocin) 4-HO-DMT (Psilocybin) 4-PO-DMT
x-DPT	(Depracetin) 4-AcO-DPT (Deprocin) 4-HO-DPT 5-MeO-DPT (The Light) DPT
Ibogaine-related	18-MAC 18-MC Coronaridine Ibogaine Ibogamine ME-18-MC Noribogaine Tabernanthine Voacangine
x-MET	(Metocin) 4-HO-MET (Metocetin) 4-AcO-MET 5-MeO-MET MET
x-MiPT	(Mipracetin) 4-AcO-MiPT (Miprocin) 4-HO-MiPT 5-Me-MiPT (Moxy) 5-MeO-MiPT MiPT
Others	4-HO-DBT 4-HO-EPT 4-HO-McPT (Lucigenol) 4-HO-MPMI (Meprocin) 4-HO-MPT 5-MeO-EiPT 5-MeO-MALT 5-MeO-MPMI Aeruginascin Baeocystin DBT DCPT EiPT EPT MPT PiPT

Others

AL-38022A
ALPHA
Dimemebfe
Efavirenz
Glaucine
Lorcaserin
M-ALPHA
RH-34
Also empathogens in general (e. g.: 5-APB, 5-MAPB, 6-APB and other substituted benzofurans).

Dissociatives
(NMDAR
antagonists)

Arylcyclo‐
hexylamines

Ketamine-related	2-Fluorodeschloroketamine Arketamine ((R)-ketamine) Deschloroketamine Ethketamine (N-Ethylnorketamine) Esketamine ((S)-ketamine) Ketamine Methoxetamine Methoxmetamine Methoxyketamine MXiPr Norketamine Tiletamine
PCP-related	2'-Oxo-PCE 3-HO-PCP 3-MeO-PCE 3-MeO-PCMo 3-MeO-PCP 4-MeO-PCP BDPC Dieticyclidine (PCDE) Eticyclidine (PCE) PCPr Phencyclidine (PCP) Rolicyclidine (PCPy) Tenocyclidine (TCP)
Others	BTCP Gacyclidine PRE-084

Adamantanes

Diarylethylamines

Morphinans

Others

Deliriants
(mAChR
antagonists)

Others

Cannabinoids
(CB₁ agonists)

Natural

Synthetic

AM-x	AM-087 AM-251 AM-279 AM-281 AM-356 AM-374 AM-381 AM-404 AM-411 AM-630 AM-661 AM-678 AM-679 AM-694 AM-735 AM-855 AM-881 AM-883 AM-905 AM-906 AM-919 AM-926 AM-938 AM-1116 AM-1172 AM-1220 AM-1221 AM-1235 AM-1241 AM-1248 AM-1710 AM-1714 AM-1902 AM-2201 AM-2212 AM-2213 AM-2232 AM-2233 AM-2389 AM-3102 AM-4030 AM-4054 AM-4056 AM-4113 AM-6545
CP x	CP 47,497 CP 55,244 CP 55,940 (±)-CP 55,940 (+)-CP 55,940 (-)-CP 55,940
HU-x	HU-210 HU-211 HU-239 HU-243 HU-308 HU-320 HU-331 HU-336 HU-345
JWH-x	JWH-007 JWH-015 JWH-018 JWH-019 JWH-030 JWH-047 JWH-048 JWH-051 JWH-057 JWH-073 JWH-081 JWH-098 JWH-116 JWH-120 JWH-122 JWH-133 JWH-139 JWH-147 JWH-148 JWH-149 JWH-149 JWH-161 JWH-164 JWH-166 JWH-167 JWH-171 JWH-175 JWH-176 JWH-181 JWH-182 JWH-184 JWH-185 JWH-192 JWH-193 JWH-194 JWH-195 JWH-196 JWH-197 JWH-198 JWH-199 JWH-200 JWH-203 JWH-205 JWH-210 JWH-210 JWH-213 JWH-220 JWH-229 JWH-234 JWH-249 JWH-250 JWH-251 JWH-253 JWH-258 JWH-300 JWH-302 JWH-307 JWH-336 JWH-350 JWH-359 JWH-387 JWH-398 JWH-424
Misc. designer cannabinoids	4-HTMPIPO 5F-AB-FUPPYCA 5F-AB-PINACA 5F-ADB 5F-ADB-PINACA 5F-ADBICA 5F-AMB 5F-APINACA 5F-CUMYL-PINACA 5F-NNE1 5F-PB-22 5F-SDB-006 A-796,260 A-836,339 AB-001 AB-005 AB-CHFUPYCA AB-CHMINACA AB-FUBINACA AB-PINACA ADAMANTYL-THPINACA ADB-CHMINACA ADB-FUBINACA ADB-PINACA ADBICA ADSB-FUB-187 AMB-FUBINACA APICA APINACA APP-FUBINACA CB-13 CUMYL-PICA CUMYL-PINACA CUMYL-THPINACA DMHP EAM-2201 FAB-144 FDU-PB-22 FUB-144 FUB-APINACA FUB-JWH-018 FUB-PB-22 FUBIMINA JTE 7-31 JTE-907 Levonantradol MDMB-CHMICA MDMB-CHMINACA MDMB-FUBINACA MEPIRAPIM MAM-2201 MDA-19 MN-18 MN-25 NESS-0327 NESS-040C5 Nabilone Nabitan NM-2201 NNE1 Org 28611 Parahexyl PTI-1 PTI-2 PX-1 PX-2 PX-3 QUCHIC QUPIC RCS-4 RCS-8 SDB-005 SDB-006 STS-135 THC-O-acetate THC-O-phosphate THJ-018 THJ-2201 UR-144 WIN 55,212-2 XLR-11

D₂ agonists

Apomorphine
Aporphine
Bromocriptine
Cabergoline
Lisuride
LSD
Memantine
Nuciferine
Pergolide
Phenethylamine
Piribedil
Pramipexole
Ropinirole
Rotigotine
Salvinorin A
Also indirect D₂ agonists, such as dopamine reuptake inhibitors (cocaine, methylphenidate), releasing agents (amphetamine, methamphetamine), and precursors (levodopa).

GABA_A
enhancers

Inhalants
(Mixed MOA)

κOR agonists

Oneirogens

Others

Monoamine releasing agents

DRAsTooltip Dopamine releasing agents

Morpholines: Fenbutrazate Fenmetramide Morazone Morforex Phendimetrazine Phenmetrazine Pseudophenmetrazine
Oxazolines: 4-MAR Aminorex Clominorex Cyclazodone Fenozolone Fluminorex Pemoline Thozalinone
Phenethylamines: 2-OH-PEA 4-CAB 4-FA 4-FMA 4-MA 4-MMA Alfetamine Amfecloral Amfepentorex Amfepramone Amphetamine (Dextroamphetamine Levoamphetamine) Amphetaminil β-Me-PEA BDB BOH Benzphetamine Buphedrone Butylone Cathine Cathinone Clobenzorex Clortermine D-Deprenyl DMA DMMA Dimethylamphetamine Ephedrine Ethcathinone EBDB Ethylone Etilamfetamine Famprofazone Fenethylline Fenproporex Flephedrone Fludorex Furfenorex Hordenine 4-Hydroxyamphetamine Iofetamine (123I) Lisdexamfetamine Lophophine Mefenorex Mephedrone Metamfepramone Methamphetamine Dextromethamphetamine Levomethamphetamine Methcathinone Methedrone MMDA MMDMA MBDB MDA (tenamfetamine) MDEA MDMA (midomafetamine) MDMPEA MDOH MDPEA Methylone Morforex Ortetamine pBA pCA pIA Pholedrine Phenethylamine Pholedrine Phenpromethamine Prenylamine Propylamphetamine Pseudoephedrine Tiflorex Tyramine Xylopropamine Zylofuramine
Piperazines: 2C-B-BZP BZP MBZP MDBZP MeOPP oMPP
Others: 2-ADN 2-AI 2-AT 4-BP 5-APDI 5-IAI Amineptine Clofenciclan Cyclopentamine Cypenamine Cyprodenate Feprosidnine Gilutensin Heptaminol Hexacyclonate Indanorex Isometheptene Methylhexanamine Naphthylaminopropane Octodrine Phthalimidopropiophenone Phenylbiguanide Propylhexedrine Levopropylhexedrine

NRAsTooltip Norepinephrine releasing agents

Morpholines: Fenbutrazate Fenmetramide Morazone Morforex Phendimetrazine Phenmetrazine Pseudophenmetrazine
Oxazolines: 4-MAR Aminorex Clominorex Cyclazodone Fenozolone Fluminorex Pemoline Thozalinone
Phenethylamines: 2-OH-PEA 4-CAB 4-FA 4-FMA 4-MA 4-MMA Alfetamine Amfecloral Amfepentorex Amfepramone Amphetamine Dextroamphetamine Levoamphetamine Amphetaminil β-Me-PEA BDB Benzphetamine BOH Buphedrone Butylone Cathine Cathinone Clobenzorex Clortermine Dimethylamphetamine DMA DMMA EBDB Ephedrine Ethcathinone Ethylone Etilamfetamine Famprofazone Fenethylline Fenproporex Flephedrone Fludorex Furfenorex Hordenine 4-Hydroxyamphetamine 5-APDI (IAP) Iofetamine (123I) Lisdexamfetamine Lophophine MBDB MDA (tenamfetamine) MDEA MDMA (midomafetamine) Metamfepramone MDMPEA MDOH MDPEA Mefenorex Mephedrone Mephentermine Methamphetamine Dextromethamphetamine Levomethamphetamine Methcathinone Methedrone Methylone Morforex Naphthylaminopropane Ortetamine pBA pCA Pentorex Phenethylamine Pholedrine Phenpromethamine Phentermine Phenylpropanolamine pIA Prenylamine Propylamphetamine Pseudoephedrine Selegiline (also D-Deprenyl) Tiflorex Tyramine Xylopropamine Zylofuramine
Piperazines: 2C-B-BZP BZP MBZP mCPP MDBZP MeOPP oMPP pFPP
Others: 2-ADN 2-AI 2-AT 2-BP 4-BP 5-IAI Clofenciclan Cyclopentamine Cypenamine Cyprodenate Feprosidnine Gilutensin Heptaminol Hexacyclonate Indanorex Isometheptene Methylhexanamine Octodrine Phthalimidopropiophenone Propylhexedrine (Levopropylhexedrine) Tuaminoheptane

SRAsTooltip Serotonin releasing agents

Aminoindanes: 5-IAI AMMI ETAI MDAI MDMAI MMAI TAI
Aminotetralins: 6-CAT 8-OH-DPAT MDAT MDMAT
Oxazolines: 4-Methylaminorex Aminorex Clominorex Fluminorex
Phenethylamines: 2-Methyl-MDA 4-CAB 4-FA 4-FMA 4-HA 4-MTA 5-APDB 5-Methyl-MDA 6-APDB 6-Methyl-MDA AEMMA Amiflamine BDB BOH Brephedrone Butylone Chlorphentermine Cloforex Amfepramone Metamfepramone DCA Dexfenfluramine DFMDA DMA DMMA EBDB EDMA Ethylone Etolorex Fenfluramine Flephedrone Flucetorex IAP Iofetamine Levofenfluramine Lophophine MBDB MDA (tenamfetamine) MDEA MDHMA MDMA (midomafetamine) MDMPEA MDOH MDPEA Mephedrone Methedrone Methylone MMA MMDA MMDMA MMMA NAP Norfenfluramine 4-TFMA pBA pCA pIA PMA PMEA PMMA TAP
Piperazines: 2C-B-BZP 3-MeOPP BZP DCPP MBZP mCPP MDBZP MeOPP Mepiprazole oMPP pCPP pFPP pTFMPP TFMPP
Tryptamines: 4-Methyl-αET 4-Methyl-αMT 5-CT 5-MeO-αET 5-MeO-αMT 5-MT αET αMT DMT Tryptamine
Others: Indeloxazine Viqualine

Others

Monoamine activity enhancers: BPAP
PPAP

DAT modulators: Agonist-like: SoRI-9804
SoRI-20040; Antagonist-like: SoRI-20041

Adrenergic release blockers: Bethanidine
Bretylium
Guanadrel
Guanazodine
Guanethidine
Guanoxan

See also: Receptor/signaling modulators • Monoamine reuptake inhibitors • Adrenergics • Dopaminergics • Serotonergics • Monoamine metabolism modulators • Monoamine neurotoxins

Serotonin receptor modulators

5-HT₁

5-HT_1A

Agonists: 8-OH-DPAT Adatanserin Amphetamine Antidepressants (e.g., etoperidone, hydroxynefazodone, nefazodone, trazodone, triazoledione, vilazodone, vortioxetine) Atypical antipsychotics (e.g., aripiprazole, asenapine, brexpiprazole, cariprazine, clozapine, lurasidone, quetiapine, ziprasidone) Azapirones (e.g., buspirone, eptapirone, gepirone, perospirone, tandospirone) Bay R 1531 Befiradol BMY-14802 Cannabidiol Dimemebfe Dopamine Ebalzotan Eltoprazine Enciprazine Ergolines (e.g., bromocriptine, cabergoline, dihydroergotamine, ergotamine, lisuride, LSD, methylergometrine (methylergonovine), methysergide, pergolide) F-11,461 F-12826 F-13714 F-14679 F-15063 F-15,599 Flesinoxan Flibanserin Flumexadol Hypidone Lesopitron LY-293284 LY-301317 mCPP MKC-242 Naluzotan NBUMP Osemozotan Oxaflozane Pardoprunox Piclozotan Rauwolscine Repinotan Roxindole RU-24,969 S-14,506 S-14671 S-15535 Sarizotan Serotonin (5-HT) SSR-181507 Sunepitron Tryptamines (e.g., 5-CT, 5-MeO-DMT, 5-MT, bufotenin, DMT, indorenate, N-Me-5-HT, psilocin, psilocybin) TGBA01AD U-92,016-A Urapidil Vilazodone Xaliproden Yohimbine
Antagonists: Atypical antipsychotics (e.g., iloperidone, risperidone, sertindole) AV965 Beta blockers (e.g., alprenolol, carteolol, cyanopindolol, iodocyanopindolol, isamoltane, oxprenolol, penbutolol, pindobind, pindolol, propranolol, tertatolol) BMY-7,378 CSP-2503 Dotarizine Ergolines (e.g., metergoline) FCE-24379 Flopropione GR-46611 Isamoltane Lecozotan Mefway Metitepine (methiothepin) MIN-117 (WF-516) MPPF NAN-190 Robalzotan S-15535 SB-649,915 SDZ 216-525 Spiperone Spiramide Spiroxatrine UH-301 WAY-100135 WAY-100635 Xylamidine
Unknown/unsorted: Acetryptine Carvedilol Ergolines (e.g., ergometrine (ergonovine))

5-HT_1B

Agonists: Anpirtoline CGS-12066A CP-93129 CP-94253 CP-122,288 CP-135807 Eltoprazine Ergolines (e.g., bromocriptine, dihydroergotamine, ergotamine, methylergometrine (methylergonovine), methysergide, pergolide) mCPP RU-24,969 Serotonin (5-HT) Triptans (e.g., avitriptan, donitriptan, eletriptan, sumatriptan, zolmitriptan) TFMPP Tryptamines (e.g., 5-BT, 5-CT, 5-MT, DMT) Vortioxetine
Antagonists: AR-A000002 Beta blockers (e.g., alprenolol, carteolol, isamoltane, oxprenolol, penbutolol, propranolol, tertatolol) Elzasonan Ergolines (e.g., metergoline) GR-127935 Isamoltane LY-393558 Metitepine (methiothepin) SB-216641 SB-224289 SB-236057 Yohimbine
Unknown/unsorted: Ergolines (e.g., cabergoline, ergometrine (ergonovine), lisuride)

5-HT_1D

Agonists: CP-122,288 CP-135807 CP-286601 Ergolines (e.g., bromocriptine, cabergoline, dihydroergotamine, ergotamine, LSD, methysergide) GR-46611 L-694247 L-772405 mCPP PNU-109291 PNU-142633 Serotonin (5-HT) TGBA01AD Triptans (e.g., almotriptan, avitriptan, donitriptan, eletriptan, frovatriptan, naratriptan, rizatriptan, sumatriptan, zolmitriptan) Tryptamines (e.g., 5-BT, 5-CT, 5-Et-DMT, 5-MT, 5-(nonyloxy)tryptamine, DMT)
Antagonists: Alniditan BRL-15,572 Elzasonan Ergolines (e.g., metergoline) GR-127935 Ketanserin LY-310762 LY-367642 LY-393558 LY-456219 LY-456220 Metitepine (methiothepin) Mianserin Ritanserin Yohimbine Ziprasidone
Unknown/unsorted: Acetryptine Ergolines (e.g., lisuride, lysergol, pergolide)

5-HT_1E

Agonists: BRL-54443 Ergolines (e.g., methysergide) Serotonin (5-HT) Triptans (e.g., eletriptan) Tryptamines (e.g., tryptamine)
Antagonists: Metitepine (methiothepin)
Unknown/unsorted: Ergolines (e.g., ergometrine (ergonovine), lysergol, methylergometrine (methylergonovine)

5-HT_1F

Agonists: BRL-54443 CP-122,288 Ergolines (e.g., bromocriptine, lysergol, methylergometrine (methylergonovine) methysergide) Lasmiditan LY-334370 Serotonin (5-HT) Triptans (e.g., eletriptan, naratriptan, sumatriptan) Tryptamines (e.g., 5-MT)
Antagonists: Metitepine (methiothepin) Mianserin

5-HT₂

5-HT_2A

Agonists: 25H/NB series (e.g., 25I-NBF, 25I-NBMD, 25I-NBOH, 25I-NBOMe, 25B-NBOMe, 25C-NBOMe, 25TFM-NBOMe, 2CBCB-NBOMe, 25CN-NBOH, 2CBFly-NBOMe) 2Cs (e.g., 2C-B, 2C-E, 2C-I, 2C-T-2, 2C-T-7, 2C-T-21) 2C-B-FLY 2CB-Ind 5-Methoxytryptamines (5-MeO-DET, 5-MeO-DiPT, 5-MeO-DMT, 5-MeO-DPT, 5-MT) α-Alkyltryptamines (e.g., 5-Cl-αMT, 5-Fl-αMT, 5-MeO-αET, 5-MeO-αMT, α-Me-5-HT, αET, αMT) AL-34662 AL-37350A Bromo-DragonFLY Dimemebfe DMBMPP DOx (e.g., DOB, DOC, DOI, DOM) Efavirenz Ergolines (e.g., 1P-LSD, ALD-52, bromocriptine, cabergoline, ergine (LSA), ergometrine (ergonovine), ergotamine, lisuride, LA-SS-Az, LSB, LSD, LSD-Pip, LSH, LSP, methylergometrine (methylergonovine), pergolide) Flumexadol IHCH-7113 Jimscaline Lorcaserin MDxx (e.g., MDA (tenamfetamine), MDMA (midomafetamine), MDOH, MMDA) O-4310 Oxaflozane PHA-57378 PNU-22394 PNU-181731 RH-34 SCHEMBL5334361 Phenethylamines (e.g., lophophine, mescaline) Piperazines (e.g., BZP, quipazine, TFMPP) Serotonin (5-HT) TCB-2 TFMFly Tryptamines (e.g., 5-BT, 5-CT, bufotenin, DET, DiPT, DMT, DPT, psilocin, psilocybin, tryptamine)
Antagonists: 5-I-R91150 5-MeO-NBpBrT AC-90179 Adatanserin Altanserin Antihistamines (e.g., cyproheptadine, hydroxyzine, ketotifen, perlapine) AMDA Atypical antipsychotics (e.g., amperozide, aripiprazole, asenapine, blonanserin, brexpiprazole, carpipramine, clocapramine, clorotepine, clozapine, fluperlapine, gevotroline, iloperidone, lurasidone, melperone, mosapramine, ocaperidone, olanzapine, paliperidone, quetiapine, risperidone, sertindole, zicronapine, ziprasidone, zotepine) Chlorprothixene Cinanserin CSP-2503 Deramciclane Dotarizine Eplivanserin Ergolines (e.g., amesergide, LY-53857, LY-215,840, mesulergine, metergoline, methysergide, sergolexole) Fananserin Flibanserin Glemanserin Irindalone Ketanserin KML-010 Landipirdine LY-393558 mCPP Medifoxamine Metitepine (methiothepin) MIN-117 (WF-516) Naftidrofuryl Nantenine Nelotanserin Opiranserin (VVZ-149) Pelanserin Phenoxybenzamine Pimavanserin Pirenperone Pizotifen Pruvanserin Rauwolscine Ritanserin Roluperidone S-14671 Sarpogrelate Serotonin antagonists and reuptake inhibitors (e.g., etoperidone, hydroxynefazodone, lubazodone, mepiprazole, nefazodone, triazoledione, trazodone) SR-46349B TGBA01AD Teniloxazine Temanogrel Tetracyclic antidepressants (e.g., amoxapine, aptazapine, esmirtazapine, maprotiline, mianserin, mirtazapine) Tricyclic antidepressants (e.g., amitriptyline) Typical antipsychotics (e.g., chlorpromazine, fluphenazine, haloperidol, loxapine, perphenazine, pimozide, pipamperone, prochlorperazine, setoperone, spiperone, spiramide, thioridazine, thiothixene, trifluoperazine) Volinanserin Xylamidine Yohimbine
Unknown/unsorted: Ergolines (e.g., dihydroergotamine, nicergoline)

5-HT_2B

Agonists: 4-Methylaminorex Aminorex Amphetamines (e.g., chlorphentermine, cloforex, dexfenfluramine, fenfluramine, levofenfluramine, norfenfluramine) BW-723C86 DOx (e.g., DOB, DOC, DOI, DOM) Ergolines (e.g., cabergoline, dihydroergocryptine, dihydroergotamine, ergotamine, methylergometrine (methylergonovine), methysergide, pergolide) Lorcaserin MDxx (e.g., MDA (tenamfetamine), MDMA (midomafetamine), MDOH, MMDA) Piperazines (e.g., TFMPP) PNU-22394 Ro60-0175 Serotonin (5-HT) Tryptamines (e.g., 5-BT, 5-CT, 5-MT, α-Me-5-HT, bufotenin, DET, DiPT, DMT, DPT, psilocin, psilocybin, tryptamine)
Antagonists: Agomelatine Atypical antipsychotics (e.g., amisulpride, aripiprazole, asenapine, brexpiprazole, cariprazine, clozapine, N-desalkylquetiapine (norquetiapine), N-desmethylclozapine (norclozapine), olanzapine, pipamperone, quetiapine, risperidone, ziprasidone) Cyproheptadine EGIS-7625 Ergolines (e.g., amesergide, bromocriptine, lisuride, LY-53857, LY-272015, mesulergine) Ketanserin LY-393558 mCPP Metadoxine Metitepine (methiothepin) Pirenperone Pizotifen Propranolol PRX-08066 Rauwolscine Ritanserin RS-127445 Sarpogrelate SB-200646 SB-204741 SB-206553 SB-215505 SB-221284 SB-228357 SDZ SER-082 Tegaserod Tetracyclic antidepressants (e.g., amoxapine, mianserin, mirtazapine) Trazodone Typical antipsychotics (e.g., chlorpromazine) TIK-301 Yohimbine
Unknown/unsorted: Ergolines (e.g., ergometrine (ergonovine))

5-HT_2C

Agonists: 2Cs (e.g., 2C-B, 2C-E, 2C-I, 2C-T-2, 2C-T-7, 2C-T-21) 5-Methoxytryptamines (5-MeO-DET, 5-MeO-DiPT, 5-MeO-DMT, 5-MeO-DPT, 5-MT) α-Alkyltryptamines (e.g., 5-Cl-αMT, 5-Fl-αMT, 5-MeO-αET, 5-MeO-αMT, α-Me-5-HT, αET, αMT) A-372159 AL-38022A Alstonine CP-809101 Dimemebfe DOx (e.g., DOB, DOC, DOI, DOM) Ergolines (e.g., ALD-52, cabergoline, dihydroergotamine, ergine (LSA), ergotamine, lisuride, LA-SS-Az, LSB, LSD, LSD-Pip, LSH, LSP, pergolide) Flumexadol Lorcaserin MDxx (e.g., MDA (tenamfetamine), MDMA (midomafetamine), MDOH, MMDA) MK-212 ORG-12962 ORG-37684 Oxaflozane PHA-57378 Phenethylamines (e.g., lophophine, mescaline) Piperazines (e.g., aripiprazole, BZP, mCPP, quipazine, TFMPP) PNU-22394 PNU-181731 Ro60-0175 Ro60-0213 Serotonin (5-HT) Tryptamines (e.g., 5-BT, 5-CT, bufotenin, DET, DiPT, DMT, DPT, psilocin, psilocybin, tryptamine) Vabicaserin WAY-629 WAY-161503 YM-348
Antagonists: Adatanserin Agomelatine Atypical antipsychotics (e.g., asenapine, clorotepine, clozapine, fluperlapine, iloperidone, melperone, olanzapine, paliperidone, quetiapine, risperidone, sertindole, ziprasidone, zotepine) Captodiame CEPC Cinanserin Cyproheptadine Deramciclane Desmetramadol Dotarizine Eltoprazine Ergolines (e.g., amesergide, bromocriptine, LY-53857, LY-215,840, mesulergine, metergoline, methysergide, sergolexole) Etoperidone Fluoxetine FR-260010 Irindalone Ketanserin Ketotifen Latrepirdine (dimebolin) Medifoxamine Metitepine (methiothepin) Nefazodone Pirenperone Pizotifen Propranolol Ritanserin RS-102221 S-14671 SB-200646 SB-206553 SB-221284 SB-228357 SB-242084 SB-243213 SDZ SER-082 Tedatioxetine Tetracyclic antidepressants (e.g., amoxapine, aptazapine, esmirtazapine, maprotiline, mianserin, mirtazapine) TIK-301 Tramadol Trazodone Tricyclic antidepressants (e.g., amitriptyline, nortriptyline) Typical antipsychotics (e.g., chlorpromazine, loxapine, pimozide, pipamperone, thioridazine) Xylamidine
Unknown/unsorted: Efavirenz Ergolines (e.g., ergometrine (ergonovine), methylergometrine (methylergonovine))

5-HT₃_–7

5-HT₃

Agonists: Alcohols (e.g., butanol, ethanol (alcohol), trichloroethanol) m-CPBG Phenylbiguanide Piperazines (e.g., BZP, mCPP, quipazine) RS-56812 Serotonin (5-HT) SR-57227 SR-57227A Tryptamines (e.g., 2-Me-5-HT, 5-CT, bufotenidine (5-HTQ)) Volatiles/gases (e.g., halothane, isoflurane, toluene, trichloroethane) YM-31636
Antagonists: Alosetron Anpirtoline Arazasetron AS-8112 Atypical antipsychotics (e.g., clozapine, olanzapine, quetiapine) Azasetron Batanopride Bemesetron (MDL-72222) Bupropion Cilansetron CSP-2503 Dazopride Dolasetron Galanolactone Granisetron Hydroxybupropion Lerisetron Memantine Ondansetron Palonosetron Ramosetron Renzapride Ricasetron Tedatioxetine Tetracyclic antidepressants (e.g., amoxapine, mianserin, mirtazapine) Thujone Tropanserin Tropisetron Typical antipsychotics (e.g., loxapine) Volatiles/gases (e.g., nitrous oxide, sevoflurane, xenon) Vortioxetine Zacopride Zatosetron
Unknown/unsorted: LY-53857 Piperazines (e.g., naphthylpiperazine)

5-HT₄

Agonists: 5-MT BIMU8 Capeserod Cinitapride Cisapride CJ-033466 Dazopride Metoclopramide Minesapride Mosapride Prucalopride PRX-03140 Renzapride RS-67,333 RS-67,506 Serotonin (5-HT) Tegaserod Usmarapride Velusetrag Zacopride
Antagonists: GR-113808 GR-125487 L-Lysine Piboserod RS-39604 RS-67532 SB-203186 SB-204070

5-HT_5A

Agonists: Ergolines (e.g., 2-Br-LSD (BOL-148), ergotamine, LSD) Serotonin (5-HT) Tryptamines (e.g., 5-CT) Valerenic acid
Antagonists: Asenapine Latrepirdine (dimebolin) Metitepine (methiothepin) Ritanserin SB-699551 Unknown/unsorted: Ergolines (e.g., metergoline, methysergide) Piperazines (e.g., naphthylpiperazine)

5-HT₆

Agonists: Ergolines (e.g., dihydroergocryptine, dihydroergotamine, ergotamine, lisuride, LSD, mesulergine, metergoline, methysergide) Hypidone Serotonin (5-HT) Tryptamines (e.g., 2-Me-5-HT, 5-BT, 5-CT, 5-MT, Bufotenin, E-6801, E-6837, EMD-386088, EMDT, LY-586713, N-Me-5-HT, ST-1936, tryptamine) WAY-181187 WAY-208466
Antagonists: ABT-354 Atypical antipsychotics (e.g., aripiprazole, asenapine, clorotepine, clozapine, fluperlapine, iloperidone, olanzapine, tiospirone) AVN-101 AVN-211 AVN-322 AVN-397 BGC20-760 BVT-5182 BVT-74316 Cerlapirdine EGIS-12,233 GW-742457 Idalopirdine Ketanserin Landipirdine Latrepirdine (dimebolin) Masupirdine Metitepine (methiothepin) MS-245 PRX-07034 Ritanserin Ro 04-6790 Ro 63-0563 SB-258585 SB-271046 SB-357134 SB-399885 SB-742457 Tetracyclic antidepressants (e.g., amoxapine, mianserin) Tricyclic antidepressants (e.g., amitriptyline, clomipramine, doxepin, nortriptyline) Typical antipsychotics (e.g., chlorpromazine, loxapine)
Unknown/unsorted: Ergolines (e.g., 2-Br-LSD (BOL-148), bromocriptine, lergotrile, pergolide) Piperazines (e.g., naphthylpiperazine)

5-HT₇

Agonists: 8-OH-DPAT AS-19 Bifeprunox E-55888 Ergolines (e.g., LSD) LP-12 LP-44 LP-211 RU-24,969 Sarizotan Serotonin (5-HT) Triptans (e.g., frovatriptan) Tryptamines (e.g., 5-CT, 5-MT, bufotenin, N-Me-5-HT)
Antagonists: Atypical antipsychotics (e.g., amisulpride, aripiprazole, asenapine, brexpiprazole, clorotepine, clozapine, fluperlapine, olanzapine, risperidone, sertindole, tiospirone, ziprasidone, zotepine) Butaclamol DR-4485 EGIS-12,233 Ergolines (e.g., 2-Br-LSD (BOL-148), amesergide, bromocriptine, cabergoline, dihydroergotamine, ergotamine, LY-53857, LY-215,840, mesulergine, metergoline, methysergide, sergolexole) JNJ-18038683 Ketanserin LY-215,840 Metitepine (methiothepin) Ritanserin SB-258719 SB-258741 SB-269970 SB-656104 SB-656104A SB-691673 SLV-313 SLV-314 Spiperone SSR-181507 Tetracyclic antidepressants (e.g., amoxapine, maprotiline, mianserin, mirtazapine) Tricyclic antidepressants (e.g., amitriptyline, clomipramine, imipramine) Typical antipsychotics (e.g., acetophenazine, chlorpromazine, chlorprothixene, fluphenazine, loxapine, pimozide) Vortioxetine
Unknown/unsorted: Ergolines (e.g., lisuride, pergolide) Piperazines (e.g., naphthylpiperazine)

See also: Receptor/signaling modulators
Adrenergics
Dopaminergics
Melatonergics
Monoamine reuptake inhibitors and releasing agents
Monoamine metabolism modulators
Monoamine neurotoxins

v t e Piperazines
Simple piperazines (no additional rings)	Aminoethylpiperazine Diethylcarbamazine HEPPS Midafotel Piperazine PIPES
Phenylpiperazines	2C-B-PP 3,4-CFP Acaprazine Antrafenine Aripiprazole Batoprazine Bifeprunox BRL-15,572 Ciprofloxacin CSP-2503 Dapiprazole DCPP DMPP Diphenylpiperazine Dropropizine EGIS-12,233 Elopiprazole Eltoprazine Enpiprazole Ensaculin Etoperidone Flesinoxan Fluanisone Flibanserin Fluprazine Itraconazole Ketoconazole Levodropropizine Lorpiprazole mCPP Mefway MeOPP Mepiprazole Naftopidil Naluzotan Naphthylpiperazine Nefazodone Niaprazine Oxypertine Pardoprunox pCPP pFPP Posaconazole S-14,506 S-14,671 S-15,535 SB-258,585 SB-271,046 SB-357,134 SB-399,885 Sonepiprazole TFMPP Tolpiprazole Trazodone Urapidil Vesnarinone Vilazodone Vortioxetine WAY-100,135 WAY-100,635
Benzylpiperazines	2C-B-BZP 3-Methylbenzylpiperazine Befuraline Bifeprunox Buclizine BZP Chlorbenzoxamine DBZP Fipexide Imatinib MBZP MDBZP Meclozine Methoxypiperamide NSI-189 Piberaline Piribedil RN-1747 Sunifiram Trimetazidine Vesnarinone
Diphenylalkylpiperazines (benzhydrylalkylpiperazines)	AD-1211 Almitrine Amperozide BRL-15,572 Buclizine BW373U86 Cetirizine Chlorbenzoxamine Chlorcyclizine Cinnarizine Clocinizine Cyclizine DBL-583 Diphenpipenol Diphenylmethylpiperazine Dotarizine DPI-221 DPI-287 DPI-3290 GBR-12,783 GBR-12,935 GBR-13,069 GBR-13,098 GBR-13,119 Hydroxyzine Lidoflazine Manidipine Meclozine MT-45 Oxatomide SNC-80 Vanoxerine
Pyrimidinylpiperazines	Buspirone Dasatinib Eptapirone Gepirone Ipsapirone Piribedil Prazitone Pyrimidinylpiperazine Revospirone Tandospirone Tirilazad Trimazosin Umespirone Zalospirone
Pyridinylpiperazines	Atevirdine Azaperone Delavirdine Mirtazapine ORG-12962 Pyridinylpiperazine
Benzo(iso)thiazolyl piperazines	Lurasidone Perospirone Revospirone Tiospirone Ziprasidone
Tricyclics (piperazine attached via side chain)	Amoxapine Clopenthixol Clorotepine Clozapine Cyanothepin Doclothepin Docloxythepin Flupentixol Fluphenazine Isofloxythepin Loxapine Meperathiepin Metitepine Octomethothepin Olanzapine Opipramol Oxyclothepin Oxyprothepin Peradithiepin Perathiepin Perazine Perphenazine Pirenzepine Prochlorperazine Thiethylperazine Thiothixene Trifluoperazine Trifluthepin Zuclopenthixol
Others/Uncategorized	6-Nitroquipazine AP-238 Azimilide Bucinnazine Cinepazet Cinepazic acid Cinepazide CPD-1 Cyclohexylpiperazine EGIS-7625 Hexocyclium Indinavir JNJ-7777120 Lodenafil MK-212 Mirodenafil PB-28 Quipazine Ranolazine SA-4503 Sildenafil Tadalafil Vardenafil VUF-6002 WY-46824 Zipeprol