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Merck

C5423

Clenbuterol hydrochloride

≥95% (TLC), powder, β2-adrenoceptor agonist

Synonym(s):

4-Amino-α-(t-butylaminomethyl)-3,5-dichlorobenzyl alcohol hydrochloride

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About This Item

Empirical Formula (Hill Notation):
C12H18Cl2N2O · HCl
CAS Number:
21898-19-1
Molecular Weight:
313.65
NACRES:
NA.77
PubChem Substance ID:
24892782
UNSPSC Code:
12352200
EC Number:
244-643-7
MDL number:
MFCD00083280
Assay:
≥95%
Form:
powder
Quality level:
200

Key Documents

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Product Name

Clenbuterol hydrochloride, ≥95%

InChI

1S/C12H18Cl2N2O.ClH/c1-12(2,3)16-6-10(17)7-4-8(13)11(15)9(14)5-7;/h4-5,10,16-17H,6,15H2,1-3H3;1H

InChI key

OPXKTCUYRHXSBK-UHFFFAOYSA-N

SMILES string

Cl.CC(C)(C)NCC(O)c1cc(Cl)c(N)c(Cl)c1

assay

≥95%

form

powder

drug control

Home Office Schedule 4.2

storage temp.

2-8°C

Quality Level

200

Gene Information

human ... ADRB2(154)

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Application

Clenbuterol hydrochloride has been used:
  • as an agonist for β-adrenergic receptor (β-AR) from chick skeletal muscle
  • to induce hypertrophic effects in masseter, digastric, and temporalis muscles of rat
  • as a reference β-agonist standard in tandem mass spectrometry(MS-MS)

Biochem/physiol Actions

Clenbuterol hydrochloride is a β2-adrenoceptor agonist and bronchodilator. It is effective in improving peak expiratory flow rate (PEFR) in asthma patients. Clenbuterol is also a performance-enhancing drug as it stimulates the central nervous system and improves oxygen transport. Clenbuterol elicits cardio protective functionality in patients with dilated cardiomyopathy.

pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Carc. 2 - Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

C5423-BULK: + C5423-VAR: + C5423-250MG: + C5423-50MG: + C5423-10MG:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCK9700
BCCK9701
BCCB5150
BCBQ2163V
BCBQ1350V

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Vipin Arora et al.
Molecular pain, 17, 1744806921997206-1744806921997206 (2021-04-09)
Beta 2 adrenergic receptor (β2 AR) activation in the central and peripheral nervous system has been implicated in nociceptive processing in acute and chronic pain settings with anti-inflammatory and anti-allodynic effects of β2-AR mimetics reported in several pain states. In
beta2-adrenoceptor agonist clenbuterol reduces infarct size and myocardial apoptosis after myocardial ischaemia/reperfusion in anaesthetized rats
Zhang Q, et al.
British Journal of Pharmacology, 160(6), 1561-1572 (2010)
Effects of clenbuterol, a beta2-adrenergic agonist, on sizes of masseter, temporalis, digastric, and tongue muscles
Ishikawa C, et al.
The Open Dentistry Journal, 3, 191-191 (2009)
beta1-and beta2-adrenergic receptor stimulation differ in their effects on PGC-1alpha and atrogin-1/MAFbx gene expression in chick skeletal muscle
Shimamoto S, et al.
Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology, 211, 1-6 (2017)
C A Izeboud et al.
Inflammation research : official journal of the European Histamine Research Society ... [et al.], 48(9), 497-502 (1999-10-16)
To investigate the suppressive effects of the beta-agonist clenbuterol on the release of TNF-alpha and IL-6 in a lipopolysaccharide (LPS)-model of inflammation, both in vitro and in vivo. Human U-937 cell line (monocyte-derived macrophages), and male Wistar rats (200-250 g).
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