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S-Benzyl-L-cysteine

Also known as: S-Benzylcysteine, H-Cys(Bzl)-OH, H-L-Cys(Bzl)-OH, L-Cysteine, S-(phenylmethyl)-, 3-(Benzylthio)-L-(+)-alanine, Benzylcysteine, Cysteine(Bzl)-OH, s-(phenylmethyl)-l-cystein, s-benzylcysteine, EINECS 221-273-4, MFCD00002613, S-Bzl-L-Cys, (S)-Benzyl-L-Cys, (S)-S-benzylcysteine, L-S-benzylcysteine, (L)-2-amino-3-(benzylthio)propanoic acid, Alanine, 3-(benzylthio)-, L-

S-Benzyl-L-cysteine (CAS 3054-01-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H13NO2S and a molecular weight of 211.281 g/mol. Key properties include a melting point of 209-214ºC, a boiling point of 379.2±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 183.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3054-01-1
Jingsj CID
J-22736-1
Molecular Formula
C10H13NO2S
Molecular Weight
211.281 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point209-214ºC
Boiling Point379.2±42.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point183.2±27.9 °C
Exact Mass211.066696
PSA88.62000
LogP2.10
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.609

Activity & Biological Data

Additional Information[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-807.

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 S-Benzyl-L-cysteine?

The CAS number of S-Benzyl-L-cysteine is 3054-01-1.

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

S-Benzyl-L-cysteine has molecular formula C10H13NO2S and molecular weight 211.281 g/mol.

What are the upstream and downstream products of S-Benzyl-L-cysteine?

For S-Benzyl-L-cysteine, Upstream Products: L-Cysteine hydrochloride anhydrous, Benzyl bromide, Benzyl chloride; Downstream Products: N-(tert-Butoxycarbonyl)-S-benzyl-L-cysteine, N-Carbobenzoxy-S-benzyl-L-cysteine, Hippuric acid.

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

Last updated:

How to cite: Jingsj. "S-Benzyl-L-cysteine (CAS 3054-01-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22736-1 (accessed 2026-11-09).

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