S-[2-(4-Pyridinyl)ethyl]-L-cysteine

S-β-(4-吡啶乙基)-L-半胱氨酸

Also known as: S-(2-Pyridin-4-ylethyl)cysteine, S-[2-(4-Pyridyl)ethyl]-L-cysteine, S-(β-4-Pyridylethyl)-L-cysteine, S-[β-(4-Pyridyl)ethyl]-L-cysteine, L-Cysteine, S-[2-(4-pyridinyl)ethyl]-, (R)-2-Amino-3-((2-(pyridin-4-yl)ethyl)thio)propanoic acid, (2R)-2-Amino-3-(2-pyridin-4-ylethylsulfanyl)propanoic acid, (2R)-2-Amino-3-[2-(4-pyridyl)ethylsulfanyl]propanoic acid, (2R)-2-Amino-3-[2-(4-pyridyl)ethylthio]propanoic acid, NSC 328389, EINECS 249-249-9, MFCD00038044, 4-PEC

S-[2-(4-Pyridinyl)ethyl]-L-cysteine (CAS 28809-04-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H14N2O2S and a molecular weight of 226.29500 g/mol. It is also known as S-(2-Pyridin-4-ylethyl)cysteine, S-[2-(4-Pyridyl)ethyl]-L-cysteine and S-(β-4-Pyridylethyl)-L-cysteine. Key properties include a melting point of 212-214ºC (dec.), a boiling point of 442.4ºC at 760mmHg, a density of 1.273g/cm3 and a flash point of 221.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

28809-04-3

Jingsj CID

J-29192-3

Molecular Formula

C₁₀H₁₄N₂O₂S

Chinese Name

S-β-(4-吡啶乙基)-L-半胱氨酸

Molecular Weight

226.29500 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026