ChemicalBook--->CAS DataBase List--->131-03-3

131-03-3

131-03-3 Structure

131-03-3 Structure
IdentificationBack Directory
[Name]

alpha-yohimbine
[CAS]

131-03-3
[Synonyms]

4-(2-amino-1-hydroxyethyl)-2-methoxyphenol hydrochloride(1:1)
methyl (16beta,17alpha,20alpha)-17-hydroxyyohimban-16-carboxylate
[EINECS(EC#)]

205-006-9
[Molecular Formula]

C21H26N2O3
[MOL File]

131-03-3.mol
[Molecular Weight]

354.443
Chemical PropertiesBack Directory
[Melting point ]

243-244°
[alpha ]

D19 -18° (pyridine); D19 -27° (abs alcohol)
[Boiling point ]

543.0±50.0 °C(Predicted)
[density ]

1.31±0.1 g/cm3(Predicted)
[form ]

Solid
[pka]

6.34(at 25℃)
[color ]

Light yellow to brown
Safety DataBack Directory
[RIDADR ]

1544
[HazardClass ]

6.1(a)
[PackingGroup ]

II
Hazard InformationBack Directory
[Uses]

Rauwolscine is a selective α2-adrenoceptor antagonist that inhibits tumor growth and induces apoptosis[1].
[Definition]

ChEBI: Rauwolscine is a methyl 17-hydroxy-20xi-yohimban-16-carboxylate.
[in vivo]

Rauwolscine (0.5 mg/kg, daily) reduces tumor growth by enhancing apoptosis and reducing cell proliferation in Balb/c female virgin mice[1].
Rauwolscine (i.v., 2.24 mg/kg) can significantly release lick-shock conflict responding in rats similar to the α agonist clonidine (0.022 mg/kg) and the benzodiazepine diazepam (0.5 mg/kg) [2].

[References]

[1] A Bruzzone, et al. Alpha2-adrenoceptor action on cell proliferation and mammary tumour growth in mice. Br J Pharmacol. 2008 Oct;155(4):494-504. DOI:10.1038/bjp.2008.278
[2] S La Marca, et al. The alpha-2 antagonists idazoxan and rauwolscine but not yohimbine or piperoxan are anxiolytic in the Vogel lick-shock conflict paradigm following intravenous administration. Life Sci. 1994;54(10):PL179-84. DOI:10.1016/0024-3205(94)00556-7
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