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S-(4-Methoxybenzyl)-L-cysteine

Also known as: H-Cys(pMeOBzl)-OH, H-Cys(4-MeO-Bzl)-OH, L-Cys(4-MeO-Bzl), L-Cysteine, S-[(4-methoxyphenyl)methyl]-, S-4-Methoxybenzyl-L-cysteine, S-p-methoxybenzyl-L-cysteine, 2-Amino-3-[(4-methoxybenzyl)thio]propanoic acid, (2R)-2-amino-3-{[(4-methoxyphenyl)methyl]sulfanyl}propanoic acid, H-L-Cys(Mob)-OH

S-(4-Methoxybenzyl)-L-cysteine (CAS 2544-31-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H15NO3S and a molecular weight of 241.307 g/mol. Key properties include a boiling point of 417.6±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 206.4±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2544-31-2
Jingsj CID
J-1958767-8
Molecular Formula
C11H15NO3S
Molecular Weight
241.307 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point417.6±45.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point206.4±28.7 °C
Exact Mass241.077271
PSA97.85000
LogP2.01
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.590
Storage ConditionsStore at RT.

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-(4-Methoxybenzyl)-L-cysteine?

The CAS number of S-(4-Methoxybenzyl)-L-cysteine is 2544-31-2.

What are the molecular formula and molecular weight of S-(4-Methoxybenzyl)-L-cysteine?

S-(4-Methoxybenzyl)-L-cysteine has molecular formula C11H15NO3S and molecular weight 241.307 g/mol.

What are the upstream and downstream products of S-(4-Methoxybenzyl)-L-cysteine?

For S-(4-Methoxybenzyl)-L-cysteine, Upstream Products: L-Cysteine, 4-Methoxybenzyl chloride, 4-Methoxybenzyl alcohol; Downstream Products: L-Cysteine, L-Cystine, Boc-Cys(pMeOBzl)-OH.

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-(4-Methoxybenzyl)-L-cysteine (CAS 2544-31-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958767-8 (accessed 2026-11-09).

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