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N-Acetyl-S-benzyl-L-cysteine

Also known as: Benzylmercapturic Acid, Ac-Cys(Bzl)-OH, N-Acetyl-S-benzylcysteine, S-Benzyl-N-acetyl-L-cysteine, S-benzyl mercapturic acid, (R)-2-Acetamido-3-(benzylthio)propanoic acid, Acetyl benzyl cysteine, N-Acetyl-S-benzyl-L-cystein

N-Acetyl-S-benzyl-L-cysteine (CAS 19542-77-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H15NO3S and a molecular weight of 253.31700 g/mol. Key properties include a melting point of 144-146°C, a boiling point of 506.2ºC at 760 mmHg, a density of 1.246 g/cm3 and a flash point of 259.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19542-77-9
Jingsj CID
J-960760-7
Molecular Formula
C12H15NO3S
Molecular Weight
253.31700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point144-146°C
Boiling Point506.2ºC at 760 mmHg
Density1.246 g/cm3
Flash Point259.9ºC
Exact Mass253.07700
PSA91.70000
LogP1.90000
Vapor Pressure4.55E-11mmHg at 25°C

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

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

The CAS number of N-Acetyl-S-benzyl-L-cysteine is 19542-77-9.

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

N-Acetyl-S-benzyl-L-cysteine has molecular formula C12H15NO3S and molecular weight 253.31700 g/mol.

What are the upstream and downstream products of N-Acetyl-S-benzyl-L-cysteine?

For N-Acetyl-S-benzyl-L-cysteine, Upstream Products: N-Acetyl-L-cysteine, Benzyl bromide, Benzyl chloride; Downstream Products: S-Benzyl-L-cysteine.

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

Last updated:

How to cite: Jingsj. "N-Acetyl-S-benzyl-L-cysteine (CAS 19542-77-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-960760-7 (accessed 2026-11-09).

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