L-Cysteine, S-[5-(acetylamino)-2-hydroxyphenyl]-

S-[5-(乙酰氨基)-2-羟基苯基]-L-半胱氨酸

Also known as: 3-Cysteinylacetaminophen, Paracetamol-cysteine, APAP-CYS, (2R)-3-(5-acetamido-2-hydroxyphenyl)sulfanyl-2-aminopropanoic acid, 3-(Cystein-S-yl)acetaminophen, 3-(Cystein-S-yl)paracetamol, 3-Cysteinylacetaminophe, S-(5-(Acetylamino)-2-hydroxyphenyl)-L-cysteine, S-[2-Hydroxy-5-(acetylamino)phenyl]cysteine, L-Cysteine, S-[5-(acetylamino)-2-hydroxyphenyl]-, UNII-6Q2X58Y8BP

L-Cysteine, S-[5-(acetylamino)-2-hydroxyphenyl]- (CAS 53446-10-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14N2O4S and a molecular weight of 270.30 g/mol. It is also known as 3-Cysteinylacetaminophen, Paracetamol-cysteine and APAP-CYS. Key properties include a melting point of 190-193ºC dec., a boiling point of 541.1ºC at 760mmHg, a density of 1.44g/cm3 and a flash point of 281ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

53446-10-9

Jingsj CID

J-1958174-5

Molecular Formula

C₁₁H₁₄N₂O₄S

Chinese Name

S-[5-(乙酰氨基)-2-羟基苯基]-L-半胱氨酸

Molecular Weight

270.30 g/mol

Category

Organic Acids

Last updated

8/21/2026