3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate

Also known as: 21-Acetoxypregna-1,4,9(11),16-tetraene-3,20-dione, 21-hydroxypregna-1,4,9(11),16-tetraene-3,20-dione 21-acetate, 21-(Acetyloxy)pregna-1,4,9(11),16-tetraene-3,20-dione, 2-((8S,10S,13S,14S)-10,13-dimethyl-3-oxo-6,7,8,10,12,13,14,15-octahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate, Pregna-1,4,9(11),16-tetraene-3,20-dione, 21-(acetyloxy)-, Acetate tetraene Matter, Tetraen-acetic acid complex

3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate (CAS 37413-91-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C23H26O4 and a molecular weight of 366.450 g/mol. Key properties include a boiling point of 534.6±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 233.0±30.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 37413-91-5
Jingsj CID: J-1377715-6
Molecular Formula: C₂₃H₂₆O₄
Molecular Weight: 366.450 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	534.6±50.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	233.0±30.2 °C
Exact Mass	366.183105
PSA	60.44000
LogP	3.48
Vapor Pressure	0.0±1.4 mmHg at 25°C
Refractive Index	1.585

Activity & Biological Data

Additional Information	[1]. Erica K M Reeves, et al. VBP15: preclinical characterization of a novel anti-inflammatory delta 9,11 steroid. Bioorg Med Chem

Frequently Asked Questions

What is the CAS number of 3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate?

The CAS number of 3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate is 37413-91-5.

What are the molecular formula and molecular weight of 3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate?

3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate has molecular formula C23H26O4 and molecular weight 366.450 g/mol.

What are the upstream and downstream products of 3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate?

For 3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate, Upstream Products: 2,4,6-Trimethylpyridine, Prednisolone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3,20-Dioxopregna-1,4,9(11),16-tetraen-21-yl acetate (CAS 37413-91-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377715-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.