Rotundic acid

铁冬青酸

Also known as: Rutundic acid, 3β,19,23-Trihydroxyurs-12-en-28-oic acid, (3β)-3,19,23-Trihydroxyurs-12-en-28-oic acid, Urs-12-en-28-oic acid, 3,19,23-trihydroxy-, (3β)-, (1R,2R,4aS,6aS,6bR,8aR,9R,10S,12aR,12bR,14bS)-1,10-dihydroxy-9-(hydroxymethyl)-1,2,6a,6b,9,12a-hexamethyl-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydropicene-4a(2H)-carboxylic acid

Rotundic acid (CAS 20137-37-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C30H48O5 and a molecular weight of 488.699 g/mol. It is also known as Rutundic acid, 3β,19,23-Trihydroxyurs-12-en-28-oic acid and (3β)-3,19,23-Trihydroxyurs-12-en-28-oic acid. Key properties include a melting point of 272-274℃, a boiling point of 622.8±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 344.5±28.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20137-37-5
Jingsj CID
J-1959516-6
Molecular Formula
C30H48O5
Chinese Name
铁冬青酸
Molecular Weight
488.699 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point272-274℃
Boiling Point622.8±55.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point344.5±28.0 °C

Frequently Asked Questions

What is the CAS number of Rotundic acid?

The CAS number of Rotundic acid is 20137-37-5.

What are the molecular formula and molecular weight of Rotundic acid?

Rotundic acid has molecular formula C30H48O5 and molecular weight 488.699 g/mol.

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

Last updated:

How to cite: Jingsj. "Rotundic acid (CAS 20137-37-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1959516-6 (accessed 2026-10-25).

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