alpha-Yohimbine

α-育亨宾

Also known as: Rauwolscine, Corynanthidine, Methyl (16β,17α,20α)-17-hydroxyyohimban-16-carboxylate, 17α-Hydroxy-20α-yohimban-16β-carboxylic acid methyl ester, α-Yohimbine, Alpha-yohimbine, Yohimbine EP Impurity B

alpha-Yohimbine (CAS 131-03-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H26N2O3 and a molecular weight of 354.443 g/mol. It is also known as Rauwolscine, Corynanthidine and Methyl (16β,17α,20α)-17-hydroxyyohimban-16-carboxylate. Key properties include a melting point of 270-280ºC, a boiling point of 543.0±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 282.2±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
131-03-3
Jingsj CID
J-23230-0
Molecular Formula
C21H26N2O3
Chinese Name
α-育亨宾
Molecular Weight
354.443 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point270-280ºC
Boiling Point543.0±50.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point282.2±30.1 °C

Frequently Asked Questions

What is the CAS number of alpha-Yohimbine?

The CAS number of alpha-Yohimbine is 131-03-3.

What are the molecular formula and molecular weight of alpha-Yohimbine?

alpha-Yohimbine has molecular formula C21H26N2O3 and molecular weight 354.443 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "alpha-Yohimbine (CAS 131-03-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23230-0 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.