All Photos(1)



(2S,3S)-Hydroxybupropion hydrochloride

≥98% (HPLC)

(2S,3S)-2-(3-Chlorophenyl)-3,5,5-trimethyl-2-morpholinol hydrochloride, GW 353162, Radafaxine hydrochloride, SS-hydroxybupropion hydrochloride, (+)-(2S,3S)-2-(3-chlorophenyl)-3,5,5-trimethyl-2-morpholinol hydrochloride, (2S,3S)-Hydroxybupropion hydrochloride
Empirical Formula (Hill Notation):
C13H18ClNO2 · HCl
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


≥98% (HPLC)




white to tan


DMSO: ≥12 mg/mL

storage temp.


SMILES string




InChI key


General description

(2S,3S)-hydroxybupropion is a major metabolite of bupropion.


5, 25 mg in glass bottle

Biochem/physiol Actions

(2S,3S)-hydroxybupropion is a dopamine transporter (DAT) and norepinephrine transporter (NET) transporters inhibitor and nicotinic acetylcholine receptor (nAChR) family modulator. Hydroxybupropions were reported to contribute to antidepressant and perhaps smoking cessation activities. Both (2S,3S) and (2R,3R) metabolites reverse affective and somatic withdrawal signs in nicotine-dependent mice, but (2S,3S)-hydroxybupropion is more potent. (2S,3S)-hydroxybupropion significantly decreases the development of nicotine reward in mice.

Features and Benefits

This compound is featured on the Biogenic Amine Transporters page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.


Exclamation mark

Signal Word


Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Yating Deng et al.
Drug metabolism and pharmacokinetics, 28(4), 339-344 (2013-02-20)
Gentiopicroside (GE), a naturally occurring iridoid glycoside, has been developed into a Novel Traditional Chinese Drug named gentiopicroside injection, and it was approved for the treatment of acute jaundice and chronic active hepatitis by SFDA. However, the inhibitory and inducible
Matthew L Banks et al.
Behavioural pharmacology, 27(2-3 Spec Issue), 196-203 (2016-02-18)
The dopamine transporter (DAT) inhibitor and nicotinic acetylcholine (nACh) receptor antagonist bupropion is being investigated as a candidate 'agonist' medication for methamphetamine addiction. In addition to its complex pharmacology, bupropion also has two distinct pharmacologically active metabolites. However, the mechanism
E Malcolm et al.
Psychopharmacology, 232(15), 2763-2771 (2015-03-13)
Preclinical studies with bupropion in rodent models of nicotine dependence have generated equivocal findings with regard to translating the clinical efficacy of the antidepressant as a smoking cessation agent. Given that rats are poor metabolizers of bupropion, the present experiments
M Imad Damaj et al.
The Journal of pharmacology and experimental therapeutics, 334(3), 1087-1095 (2010-06-26)
Bupropion is an atypical antidepressant that also has utility as a smoking cessation aid. Hydroxybupropions are major metabolites of bupropion and are believed to contribute to antidepressant and perhaps smoking cessation activities. Because bupropion metabolism is more similar in humans
Rajesh Chavan et al.
Xenobiotica; the fate of foreign compounds in biological systems, 51(3), 251-261 (2020-10-21)
Nafithromycin is a next generation lactone ketolide antibiotic slated to enter phase III clinical development in India for the treatment of CABP as a shorter 800 mg-OD X3 day therapeutic regimen. Nafithromycin exhibits potent activity against MDR Streptococcus pneumoniae including erythromycin and


Biogenic Amine Transporters

These distinct transporters, NET, DAT and SERT, respectively, are of particular clinical interest because they are the molecular targets for many antidepressants as well as drugs of abuse, such as cocaine and the amphetamines.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service