Pristimerin

扁塑藤素

Also known as: (2R,4aS,6aS,12bR,14aS,14bR)-10-Hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-1,2,3,4,4a,5,6,6a,11,12b,13,14,14a,14b-tetradecahydropicene-2-carboxylic acid methyl ester, Celastrol methyl ester, Celastrol-methylether, NSC 99281, 3-Hydroxy-2-oxo-24-nor-D:A-friedoolean-1(10),3,5,7-tetren-29-oic acid methyl ester, (9β,13α,14β,20α)-3-Hydroxy-9,13-dimethyl-2-oxo-24,25,26-trinoroleana-1(10),3,5,7-tetraen-29-oic acid methyl ester, pristimerine

Pristimerin (CAS 1258-84-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C30H40O4 and a molecular weight of 464.636 g/mol. It is also known as (2R,4aS,6aS,12bR,14aS,14bR)-10-Hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-1,2,3,4,4a,5,6,6a,11,12b,13,14,14a,14b-tetradecahydropicene-2-carboxylic acid methyl ester, Celastrol methyl ester and Celastrol-methylether. Key properties include a melting point of 219.5°C, a boiling point of 607.7±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 195.1±25.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1258-84-0
Jingsj CID
J-1963051-5
Molecular Formula
C30H40O4
Chinese Name
扁塑藤素
Molecular Weight
464.636 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point219.5°C
Boiling Point607.7±55.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point195.1±25.0 °C

Frequently Asked Questions

What is the CAS number of Pristimerin?

The CAS number of Pristimerin is 1258-84-0.

What are the molecular formula and molecular weight of Pristimerin?

Pristimerin has molecular formula C30H40O4 and molecular weight 464.636 g/mol.

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

Last updated:

How to cite: Jingsj. "Pristimerin (CAS 1258-84-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1963051-5 (accessed 2026-10-25).

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