2-Phenyl-3-aminobutane

Chemical compound

US: Schedule II (isomer of Methamphetamine)

Identifiers

IUPAC name

3-Phenylbutan-2-amine

CAS Number

21906-17-2

PubChem CID

210912

ChemSpider

182828

CompTox Dashboard (EPA)

DTXSID50944501

Chemical and physical dataFormulaC₁₀H₁₅NMolar mass149.237 g·mol⁻¹3D model (JSmol)

Interactive image

SMILES

C1(=CC=CC=C1)C(C)C(C)N

InChI

InChI=1/C10H15N/c1-8(9(2)11)10-6-4-3-5-7-10/h3-9H,11H2,1-2H3
Key:BKRHEVJTTWAYFJ-UHFFFAOYSA-N

2-Phenyl-3-aminobutane (also known as β-methylamphetamine) is a stimulant of the phenethylamine class that is closely related to its α-methyl analog Pentorex.^[1] It was first synthesized by the German scientists Felix Haffner and Fritz Sommer in 1939 as a stimulant with milder effects, shorter duration, lower toxicity and fewer side effects compared to previously known drugs such as amphetamine.^[2]

2-Phenyl-3-aminobutane is banned in some countries as a structural isomer of methamphetamine.

References

^ Ledgard J (2007). A Laboratory History of Narcotics. Vol. 1. Lulu.com. p. 81. ISBN 978-0-615-15694-1.
^ Haffner F, Sommer F (22 August 1944). "Patent US 2356582 A - Stimulants suitable for combating symptoms of fatigue and process for their production". Retrieved 25 July 2015.

Stimulants

Adamantanes

Adenosine antagonists

1-(4-Methylphenyl)-2-aminobutane
1-Methylamino-1-(3,4-methylenedioxyphenyl)propane
2-Fluoroamphetamine
2-Fluoromethamphetamine
2-OH-PEA
2-Phenyl-3-aminobutane
2,3-MDA
3-Fluoroamphetamine
3-Fluoroethamphetamine
3-Methoxyamphetamine
3-Methylamphetamine
4-Fluoroamphetamine
4-Fluoromethamphetamine
4-MA
4-MMA
4-MTA
6-FNE
AL-1095
Alfetamine
a-Ethylphenethylamine
Amfecloral
Amfepentorex
Amidephrine
2-Amino-1,2-dihydronaphthalene
2-Aminoindane
5-(2-Aminopropyl)indole
2-Aminotetralin
Acridorex
Amphetamine (Dextroamphetamine, Levoamphetamine)
Amphetaminil
Arbutamine
β-Methylphenethylamine
β-Phenylmethamphetamine
Benfluorex
Benzphetamine
BDB
BOH
3-Benzhydrylmorpholine
BPAP
Camfetamine
Cathine
Chlorphentermine
Cilobamine
Cinnamedrine
Clenbuterol
Clobenzorex
Cloforex
Clortermine
Cypenamine
D-Deprenyl
Denopamine
Dimethoxyamphetamine
Dimethylamphetamine
Dobutamine
DOPA (Dextrodopa, Levodopa)
Dopamine
Dopexamine
Droxidopa
EBDB
Ephedrine
Epinephrine
Epinine
Etafedrine
Ethylnorepinephrine
Etilamfetamine
Etilefrine
Famprofazone
Fencamfamin
Fencamine
Fenethylline
Fenfluramine (Dexfenfluramine, Levofenfluramine)
Fenproporex
Feprosidnine
Fludorex
Formetorex
Furfenorex
Gepefrine
Hexapradol
HMMA
Hordenine
4-Hydroxyamphetamine
5-Iodo-2-aminoindane
Ibopamine
Indanylamphetamine
Iofetamine
Isoetarine
Isoprenaline
L-Deprenyl (Selegiline)
Lefetamine
Lisdexamfetamine
Lophophine
MBDB
MDA (tenamfetamine)
MDBU
MDEA
MDMA (midomafetamine)
MDMPEA
MDOH
MDPR
MDPEA
Mefenorex
Mephentermine
Metanephrine
Metaraminol
Mesocarb
Methamphetamine (Dextromethamphetamine, Levomethamphetamine)
Methoxamine
Methoxyphenamine
MMA
Methoxyphenamine
MMDA
MMDMA
MMMA
Morforex
N,alpha-Diethylphenylethylamine
N,N-Dimethylphenethylamine
Naphthylamphetamine
Nisoxetine
Norepinephrine
Norfenefrine
Norfenfluramine
Normetanephrine
L-Norpseudoephedrine
Octopamine
Orciprenaline
Ortetamine
Oxifentorex
Oxilofrine
PBA
PCA
PCMA
PHA
Pentorex
Phenatine
Phenpromethamine
Phentermine
Phenylalanine
Phenylephrine
Phenylpropanolamine
Pholedrine
PIA
PMA
PMEA
PMMA
PPAP
Prenylamine
Propylamphetamine
Pseudoephedrine
Ropinirole
Salbutamol (Levosalbutamol)
Sibutramine
Solriamfetol
Synephrine
Theodrenaline
Tiflorex
Tranylcypromine
Tyramine
Tyrosine
Xylopropamine
Zylofuramine

Phenylmorpholines

Piperazines

Piperidines

1-Benzyl-4-(2-(diphenylmethoxy)ethyl)piperidine
2-Benzylpiperidine
2-Methyl-3-phenylpiperidine
3,4-Dichloromethylphenidate
4-Benzylpiperidine
4-Fluoromethylphenidate
4-Methylmethylphenidate
Desoxypipradrol
Difemetorex
Diphenylpyraline
Ethylnaphthidate
Ethylphenidate
Methylnaphthidate
Isopropylphenidate
JZ-IV-10
Methylphenidate (Dexmethylphenidate)
Nocaine
Phacetoperane
Pipradrol
Propylphenidate
Serdexmethylphenidate
SCH-5472

Others

Antiobesity agents/Anorectics (A08)

Stimulants

Amphetamines and phenethylamines	4-Methylamphetamine^‡ Amfecloral Amfepentorex Amfepramone Amphetamine Amphetaminil Benzphetamine Cathine Cathinone Chlorphentermine Clobenzorex Cloforex Clortermine Dextroamphetamine Dimethylcathinone Ephedrine Ephedra^‡ Etilamfetamine Etolorex Fenethylline Fenproporex Fludorex Furfenorex^‡ Khat Lisdexamfetamine Mefenorex Methamphetamine Norfenfluramine Pentorex Phentermine (+topiramate) Xylopropamine Zylofuramine
Adrenergic agonists	Albuterol Clenbuterol^§ Ephedrine Ephedra^‡ Levopropylhexedrine Synephrine Terbutaline Yohimbine (Yohimbe)
Other	Aminorex^‡ Atomoxetine Benfluorex^‡ Bupropion (+naltrexone) Dexfenfluramine^‡ Dexmethylphenidate Difemetorex^‡ Fenbutrazate Fenfluramine (+phentermine^‡) Manifaxine Mazindol Methylphenidate Phendimetrazine Phenethylamine Phenmetrazine Phenylpropanolamine Pipradrol Propylhexedrine Pyrovalerone Sibutramine^‡ Tesofensine

Cannabinoid
antagonists

GLP-1, GIP, and / or
glucagon agonists

DACRAs

Cagrilintide (+semaglutide^†)

5-HT2C
receptor agonists

5-HTP
Lorcaserin^‡

Absorption inhibitors

Uncouplers

2,4-Dinitrophenol^‡

Others

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

Adrenergic receptor modulators

α₁

Agonists

6-FNE
Amidephrine
Buspirone
Cirazoline
Corbadrine
Deoxyepinephrine (epinine, N-methyldopamine)
Desglymidodrine
Dexisometheptene
Dipivefrine
Dopamine
Droxidopa (L-DOPS)
Epinephrine
Etilefrine
Etilevodopa
Ethylnorepinephrine
Ibopamine
Indanidine
Isometheptene
L-DOPA (levodopa)
L-Phenylalanine
L-Tyrosine
Melevodopa
Metaraminol
Methoxamine
Methyldopa
Midodrine
Naphazoline
Norepinephrine
Octopamine
Oxymetazoline
Phenylephrine
Phenylpropanolamine
Synephrine
Tetryzoline
Tiamenidine
XP21279
Xylometazoline

Antagonists

Abanoquil
Ajmalicine
Alfuzosin
Anisodamine
Anisodine
Atiprosin
Atypical antipsychotics (e.g., brexpiprazole, clozapine, olanzapine, quetiapine, risperidone)
Benoxathian
Beta blockers (e.g., adimolol, amosulalol, arotinolol, carvedilol, eugenodilol, labetalol)
Buflomedil
Bunazosin
Corynanthine
Dapiprazole
Domesticine
Doxazosin
Ergolines (e.g., acetergamine, ergotamine, dihydroergotamine, lisuride, nicergoline, terguride)
Etoperidone
Fenspiride
Hydroxyzine
Indoramin
Ketanserin
L-765,314
mCPP
Mepiprazole
Metazosin
Monatepil
Moxisylyte
Naftopidil
Nantenine
Neldazosin
Niaprazine
Niguldipine
Pardoprunox
Pelanserin
Perlapine
Phendioxan
Phenoxybenzamine
Phentolamine
Phenylpiperazine antidepressants (e.g., hydroxynefazodone, nefazodone, trazodone, triazoledione)
Piperoxan
Prazosin
Quinazosin
Quinidine
Silodosin
Spegatrine
Spiperone
Talipexole
Tamsulosin
Terazosin
Tiodazosin
Tolazoline
Tetracyclic antidepressants (e.g., amoxapine, maprotiline, mianserin)
Tricyclic antidepressants (e.g., amitriptyline, clomipramine, doxepin, imipramine, trimipramine)
Trimazosin
Typical antipsychotics (e.g., chlorpromazine, fluphenazine, loxapine, thioridazine)
Urapidil
WB-4101
Zolertine

α₂

Agonists

(R)-3-Nitrobiphenyline
4-NEMD
6-FNE
Amitraz
Apraclonidine
Brimonidine
Clonidine
Corbadrine
Deoxyepinephrine (epinine, N-methyldopamine)
Detomidine
Dexmedetomidine
Dihydroergotamine
Dipivefrine
Dopamine
Droxidopa (L-DOPS)
Etilevodopa
Ergotamine
Epinephrine
Etilefrine
Ethylnorepinephrine
Guanabenz
Guanfacine
Guanoxabenz
L-DOPA (levodopa)
L-Phenylalanine
L-Tyrosine
Ibopamine
Lofexidine
Medetomidine
Melevodopa
Methyldopa
Mivazerol
Moxonidine
Naphazoline
Norepinephrine
Oxymetazoline
Phenylpropanolamine
Piperoxan
PS75
Rezatomidine
Rilmenidine
Romifidine
Talipexole
Tasipimidine
Tetryzoline
Tiamenidine
Tizanidine
Tolonidine
Urapidil
Vatinoxan
XP21279
Xylazine
Xylometazoline

Antagonists

1-PP
Adimolol
Amesergide
Aptazapine
Atipamezole
Atypical antipsychotics (e.g., asenapine, brexpiprazole, clozapine, lurasidone, olanzapine, paliperidone, quetiapine, risperidone, zotepine)
Azapirones (e.g., buspirone, gepirone, ipsapirone, tandospirone)
BRL-44408
Buflomedil
Cirazoline
Efaroxan
Esmirtazapine
Fenmetozole
Fluparoxan
Idazoxan
Ketanserin
Lisuride
mCPP
Mianserin
Mirtazapine
NAN-190
Pardoprunox
Phentolamine
Phenoxybenzamine
Piperoxan
Piribedil
Rauwolscine
Rotigotine
Setiptiline
Spegatrine
Spiroxatrine
Sunepitron
Terguride
Tolazoline
Typical antipsychotics (e.g., chlorpromazine, fluphenazine, loxapine, thioridazine)
Yohimbine

Agonists

Abediterol
Alifedrine
Amibegron
Arbutamine
Arformoterol
Arotinolol
BAAM
Bambuterol
Befunolol
Bitolterol
Broxaterol
Buphenine
Carbuterol
Carmoterol
Cimaterol
Clenbuterol
Colterol
Corbadrine
Denopamine
Deoxyepinephrine (epinine, N-methyldopamine)
Dipivefrine
Dobutamine
Dopamine
Dopexamine
Droxidopa (L-DOPS)
Epinephrine
Etafedrine
Etilefrine
Etilevodopa
Ethylnorepinephrine
Eugenodilol
Fenoterol
Formoterol
Hexoprenaline
Higenamine
Ibopamine
Indacaterol
Isoetarine
Isoprenaline
Isoxsuprine
L-DOPA (levodopa)
L-Phenylalanine
L-Tyrosine
Levosalbutamol
Lubabegron
Mabuterol
Melevodopa
Methoxyphenamine
Methyldopa
Mirabegron
Norepinephrine
Orciprenaline
Oxyfedrine
PF-610355
Phenylpropanolamine
Pirbuterol
Prenalterol
Ractopamine
Procaterol
Reproterol
Rimiterol
Ritodrine
Salbutamol
Salmeterol
Solabegron
Terbutaline
Tretoquinol
Tulobuterol
Vibegron
Vilanterol
Xamoterol
XP21279
Zilpaterol
Zinterol

Antagonists

See also: Receptor/signaling modulators
Dopaminergics
Serotonergics
Monoamine reuptake inhibitors
Monoamine releasing agents
Monoamine metabolism modulators
Monoamine neurotoxins

v t e Phenethylamines
Phenethylamines	Psychedelics: 25B-NBOMe 25C-NBOMe 25D-NBOMe 25I-NBOMe 25N-NBOMe 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 Allylescaline DESOXY Escaline Isoproscaline Jimscaline Macromerine MEPEA Mescaline Metaescaline Methallylescaline Proscaline Psi-2C-T-4 TCB-2 Stimulants: Phenylethanolamine Hordenine Phenethylamine Phenpromethamine α-Methylphenethylamine (amphetamine) β-Methylphenethylamine m-Methylphenethylamine N-Methylphenethylamine o-Methylphenethylamine p-Methylphenethylamine Methylphenidate Entactogens: Lophophine MDPEA MDMPEA Others: BOH DMPEA
Amphetamines	Psychedelics: 3C-AL 3C-BZ 3C-E 3C-MAL 3C-P Aleph Beatrice Bromo-DragonFLY D-Deprenyl DMA DMCPA DMMDA DOB DOC DOEF DOET DOI DOM DON DOPR DOTFM Ganesha MMDA MMDA-2 Psi-DOM TMA TeMA ZDCM-04 Stimulants: 2-FA 2-FMA 3-FA 3-FMA Acridorex Alfetamine Amfecloral Amfepentorex Amphetamine (Dextroamphetamine, Levoamphetamine) Amphetaminil Benfluorex Benzphetamine Cathine Clobenzorex Dimethylamphetamine Ephedrine Etilamfetamine Fencamfamin Fencamine Fenethylline Fenfluramine (Dexfenfluramine, Levofenfluramine) Fenproporex Flucetorex Fludorex Formetorex Furfenorex Gepefrine 4-Hydroxyamphetamine Iofetamine Isopropylamphetamine Lefetamine Lisdexamfetamine Mefenorex Metaraminol Methamphetamine (Dextromethamphetamine, Levomethamphetamine) Methoxyphenamine MMA Morforex Norfenfluramine L-Norpseudoephedrine N,alpha-Diethylphenylethylamine Oxifentorex Oxilofrine Ortetamine PBA PCA PFA PFMA PIA PMA PMEA PMMA Phenylpropanolamine Pholedrine Prenylamine Propylamphetamine Pseudoephedrine Sibutramine Tiflorex Tranylcypromine Xylopropamine Zylofuramine Entactogens: 4-FA 4-FMA 4-MA 4-MMA 4-MTA 5-APB 5-APDB 5-EAPB 5-IT 5-MAPB 5-MAPDB 6-APB 6-APDB 6-Chloro-MDMA 6-EAPB 6-IT 6-MAPB 6-MAPDB EDA IAP 2,3-MDA 3,4-MDA (tenamfetamine) MDEA MDHMA MDMA (midomafetamine) MDOH Methamnetamine MMDMA Naphthylaminopropane TAP Others: 3,4-DCA Amiflamine DiFMDA Selegiline (also D-Deprenyl)
Phentermines	Stimulants: Chlorphentermine Cloforex Clortermine Etolorex Mephentermine Pentorex Phentermine Entactogens: MDPH MDMPH Others: Cericlamine
Cathinones	Stimulants: 3-FMC 4-MC 4-BMC 4-CMC 4-EMC 4-FMC 4-MEC 4-MeMABP 4-MPD Amfepramone Benzedrone Brephedrone Buphedrone Bupropion Cathinone Dimethylcathinone Ethcathinone Eutylone Hydroxybupropion Methcathinone Methedrone NEB N-Ethylhexedrone N-Ethylpentedrone Pentedrone Pentylone Radafaxine Entactogens: 3,4-DMMC 3-MMC Butylone Ethylone Methylone Methylenedioxycathinone Mephedrone
Phenylisobutylamines	Entactogens: 4-CAB 4-MAB Ariadne BDB Butylone EBDB Eutylone MBDB Stimulants: Phenylisobutylamine
Phenylalkylpyrrolidines	Stimulants: α-PBP α-PHP α-PPP α-PVP MDPBP MDPPP MDPV 4-MePBP 4-MePHP 4-MePPP MOPPP MOPVP MPBP MPHP MPPP Naphyrone PEP Prolintane Pyrovalerone
Catecholamines (and close relatives)	6-FNE 6-OHDA a-Me-DA a-Me-TRA Adrenochrome Ciladopa D-DOPA (Dextrodopa) Dimetofrine Dopamine Epinephrine Epinine Etilefrine Ethylnorepinephrine Fenclonine Ibopamine Isoprenaline Isoetarine L-DOPA (Levodopa) L-DOPS (Droxidopa) L-Phenylalanine L-Tyrosine m-Tyramine Metanephrine Metaraminol Metaterol Metirosine Methyldopa N,N-Dimethyldopamine Nordefrin (Levonordefrin) Norepinephrine Norfenefrine (m-Octopamine) Normetanephrine Orciprenaline p-Octopamine p-Tyramine Phenylephrine Synephrine
Miscellaneous	AL-LAD Amidephrine Arbutamine Cafedrine Denopamine Desvenlafaxine Diphenidine Dizocilpine Dobutamine Dopexamine Ephenidine Etafedrine ETH-LAD Famprofazone Fluorolintane Hexapradol IP-LAD Lysergic acid amide Lysergic acid 2-butyl amide Lysergic acid 2,4-dimethylazetidide Lysergic acid diethylamide Methoxamine Methoxphenidine MT-45 PARGY-LAD Phenibut PRO-LAD Pronethalol Salbutamol (Levosalbutamol) Solriamfetol Theodrenaline Thiamphenicol UWA-101 Venlafaxine