S-Acetyl-L-cysteine hydrochloride

S-乙酰基-L-半胱氨酸盐酸盐

Also known as: (R)-3-(acetylthio)-2-aminopropanoic acid hydrochloride, L-Cysteine, acetate (ester), hydrochloride (9CI), Acetylcysteine Impurity 29, Acetylcysteine Impurity 05, RMA-588

S-Acetyl-L-cysteine hydrochloride (CAS 66185-37-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10ClNO3S and a molecular weight of 199.659 g/mol. It is also known as (R)-3-(acetylthio)-2-aminopropanoic acid hydrochloride, L-Cysteine, acetate (ester), hydrochloride (9CI) and Acetylcysteine Impurity 29. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66185-37-3
Jingsj CID
J-1117123-6
Molecular Formula
C5H10ClNO3S
Chinese Name
S-乙酰基-L-半胱氨酸盐酸盐
Molecular Weight
199.659 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of S-Acetyl-L-cysteine hydrochloride?

The CAS number of S-Acetyl-L-cysteine hydrochloride is 66185-37-3.

What are the molecular formula and molecular weight of S-Acetyl-L-cysteine hydrochloride?

S-Acetyl-L-cysteine hydrochloride has molecular formula C5H10ClNO3S and molecular weight 199.659 g/mol.

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

Last updated:

How to cite: Jingsj. "S-Acetyl-L-cysteine hydrochloride (CAS 66185-37-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117123-6 (accessed 2026-10-26).

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