BRL 37344 sodium salt hydrate


BRL 37344A, (±)-(R*,R*)-[4-[2-[[2-(3-Chlorophenyl)-2-hydroxyethyl]amino]propyl]phenoxy]acetic acid sodium hydrate
Empirical Formula (Hill Notation):
C19H21ClNNaO4 · xH2O
Molecular Weight:
385.82 (anhydrous basis)
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level


≥98% (HPLC)






DMSO: 18 mg/mL, clear (warmed)

SMILES string




InChI key


Gene Information

human ... ADRB3(155)


5, 25 mg in glass bottle

Biochem/physiol Actions

BRL 37344 is a selective β3-adrenoceptor agonist. Studies support the hypothesis that there are peripheral β3 adrenergic receptors that can reduce food intake and that central β2 or β3 adrenergic receptors mediate the peripheral effects of the β3 agonist.

Features and Benefits

This compound is featured on the β-Adrenoceptors page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.


Hygroscopic; store desiccated.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Ziwen Wang et al.
Molecular medicine (Cambridge, Mass.), 26(1), 54-54 (2020-06-07)
Our objective was to investigate the efficacy of the beta-3 adrenergic receptor (β3-AR) agonist BRL37344 for the prevention of liver steatosis and inflammation associated with nonalcoholic fatty liver disease (NAFLD). Four groups were established: a control group (given a standard...
M A Oriowo et al.
The Journal of pharmacology and experimental therapeutics, 277(1), 22-27 (1996-04-01)
The stimulation by BRL 37344 of lipolysis in rat adipose tissues, and of relaxation of the rat distal colon, is mediated by the beta-3 adrenoceptor. The stereochemical requirements of the beta-3 adrenoceptor are poorly understood. The activities of the four...
S Tsujii et al.
Physiology & behavior, 63(4), 723-728 (1998-04-02)
This study evaluated the effect of peripheral injections of a beta3 adrenergic agonist, BRL-37,344 on food intake and whether this inhibition could be blocked by a nonspecific beta-adrenergic antagonist, propranolol, given peripherally or into the central nervous system. When BRL-37,344...
K Koike et al.
European journal of pharmacology, 334(2-3), 217-221 (1997-11-22)
Beta-adrenoceptor-mediated relaxation of guinea pig taenia caecum was investigated by studying the effects of the beta3-adrenoceptor agonists, BRL37344A [(R*,R*)-(+/-)-4-[2'-[2-hydroxy-2-(3-chlorophenyl) ethylamino] propyl] phenoxyacetic acid sodium salt sesquihydrate] and BRL35135A [(R*,R*)-(+/-)-methyl-4-[2-[2-hydroxy-2-(3-chlorophenyl) ethylamine] propyl] phenoxyacetate hydrobromide]. BRL37344A and BRL35135A caused dose-dependent relaxation of...
Guo Chen et al.
Neurourology and urodynamics, 39(8), 2128-2138 (2020-09-20)
Abnormal intravesical pressure created by partial bladder outlet obstruction (PBOO) triggered the progression from chronic inflammation to fibrosis, initiating structural and functional alterations of bladder. To elucidate the underlying mechanisms of contraction and inflammatory response, we investigated the isolated human...

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