L-Penicillamine

L-青霉胺

Also known as: (R)-2-amino-3-mercapto-3-methylbutanoic acid, 3-mercapto-L-valine, 3,3-dimethyl-L-cysteine, L-(+)-penicillamine, L-beta,beta-dimethylcysteine, L-beta-mercaptovaline, (2R)-2-amino-3-methyl-3-sulfanylbutanoic acid, L-β,β-dimethylcysteine, L-β-mercaptovaline, 3-sulfanyl-L-valine, H-Pen-OH

L-Penicillamine (CAS 1113-41-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H11NO2S and a molecular weight of 149.211 g/mol. It is also known as (R)-2-amino-3-mercapto-3-methylbutanoic acid, 3-mercapto-L-valine and 3,3-dimethyl-L-cysteine. Key properties include a melting point of 206ºC (dec.), a boiling point of 251.8±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 106.1±25.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1113-41-3

Jingsj CID

J-1991836-7

Molecular Formula

C₅H₁₁NO₂S

Chinese Name

L-青霉胺

Molecular Weight

149.211 g/mol

Category

Organic Bases

Last updated

8/21/2026