Ethyl (S)-2-mercaptopropanoate

(S)-2-巯基丙酸乙酯

Also known as: (-)-2-Mercaptopropionic acid ethyl ester, (-)-Ethyl 2-mercaptopropanoate, Propanoic acid, 2-mercapto-, ethyl ester, (S)-

Ethyl (S)-2-mercaptopropanoate (CAS 128656-76-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10O2S and a molecular weight of 134.19700 g/mol. It is also known as (-)-2-Mercaptopropionic acid ethyl ester, (-)-Ethyl 2-mercaptopropanoate and Propanoic acid, 2-mercapto-, ethyl ester, (S)-. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 128656-76-8
Jingsj CID: J-1191942-7
Molecular Formula: C₅H₁₀O₂S
Chinese Name: (S)-2-巯基丙酸乙酯
Molecular Weight: 134.19700 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of Ethyl (S)-2-mercaptopropanoate?

The CAS number of Ethyl (S)-2-mercaptopropanoate is 128656-76-8.

What are the molecular formula and molecular weight of Ethyl (S)-2-mercaptopropanoate?

Ethyl (S)-2-mercaptopropanoate has molecular formula C5H10O2S and molecular weight 134.19700 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl (S)-2-mercaptopropanoate (CAS 128656-76-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1191942-7 (accessed 2026-10-25).

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