Octadecyl 3-mercaptopropionate

3-巯基丙酸十八烷酯

Also known as: 3-Mercaptopropionic acid octadecyl ester, Stearyl 3-mercaptopropionate, Octadecyl 3-sulfanylpropanoate, 3-Mercaptopropionic acid stearyl ester, OCTADECYL 3-MERCAPTOPROPIONATE, Stearyl 3-Mercaptopropionate

Octadecyl 3-mercaptopropionate (CAS 31778-15-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H42O2S and a molecular weight of 358.62200 g/mol. It is also known as 3-Mercaptopropionic acid octadecyl ester, Stearyl 3-mercaptopropionate and Octadecyl 3-sulfanylpropanoate. Key properties include a melting point of 28 °C, a boiling point of 443.3ºC at 760mmHg, a density of 0.913g/cm3 and a flash point of 281ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31778-15-1
Jingsj CID
J-1360175-3
Molecular Formula
C21H42O2S
Chinese Name
3-巯基丙酸十八烷酯
Molecular Weight
358.62200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point28 °C
Boiling Point443.3ºC at 760mmHg
Density0.913g/cm3
Flash Point281ºC

Frequently Asked Questions

What is the CAS number of Octadecyl 3-mercaptopropionate?

The CAS number of Octadecyl 3-mercaptopropionate is 31778-15-1.

What are the molecular formula and molecular weight of Octadecyl 3-mercaptopropionate?

Octadecyl 3-mercaptopropionate has molecular formula C21H42O2S and molecular weight 358.62200 g/mol.

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

Last updated:

How to cite: Jingsj. "Octadecyl 3-mercaptopropionate (CAS 31778-15-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1360175-3 (accessed 2026-10-24).

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