Testosterone isobutyrate

异丁酸睾酮

Also known as: Testosterone 17-isobutyrate, Testosterone 2-methylpropanoate, 17β-(2-Methyl-1-oxopropoxy)androst-4-en-3-one, 17β-(Isobutyryloxy)androsta-4-ene-3-one, 4-ANDROSTEN-17-BETA-OL-3-ONE ISOBUTYRATE, 4-ANDROSTEN-17BETA-OL-3-ONE 17-ISOBUTYRATE, [(8R,9S,10R,13S,14S,17S)-10,13-Dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] 2-methylpropanoate, Testosterone propionate EP impurity B, EINECS 214-622-7, UNII-H0KNQ242J5

Testosterone isobutyrate (CAS 1169-49-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C23H34O3 and a molecular weight of 358.51400 g/mol. It is also known as Testosterone 17-isobutyrate, Testosterone 2-methylpropanoate and 17β-(2-Methyl-1-oxopropoxy)androst-4-en-3-one. Key properties include a boiling point of 462.6ºC at 760 mmHg, a density of 1.09 g/cm3 and a flash point of 198.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1169-49-9
Jingsj CID
J-28244-0
Molecular Formula
C23H34O3
Chinese Name
异丁酸睾酮
Molecular Weight
358.51400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point462.6ºC at 760 mmHg
Density1.09 g/cm3
Flash Point198.8ºC

Frequently Asked Questions

What is the CAS number of Testosterone isobutyrate?

The CAS number of Testosterone isobutyrate is 1169-49-9.

What are the molecular formula and molecular weight of Testosterone isobutyrate?

Testosterone isobutyrate has molecular formula C23H34O3 and molecular weight 358.51400 g/mol.

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

Last updated:

How to cite: Jingsj. "Testosterone isobutyrate (CAS 1169-49-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28244-0 (accessed 2026-10-23).

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