L-Selenocystine

L-硒代胱氨酸

Also known as: selenocystine, Seleno-L-cystine, (R,R)-3,3'-Diselenobis(2-aminopropionic acid), 3,3'-Diseleno-L-alanine, L-3,3'-Diselenodialanine, UNII:493154PTZ7, MFCD00800971, (2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]diselanyl]propanoic acid, (2R,2'R)-3,3'-(1,2-Diselanediyl)bis(2-aminopropanoic acid)

L-Selenocystine (CAS 29621-88-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H12N2O4Se2 and a molecular weight of 334.091 g/mol. It is also known as selenocystine, Seleno-L-cystine and (R,R)-3,3'-Diselenobis(2-aminopropionic acid). Key properties include a melting point of 224.5-229.5ºC(lit.), a boiling point of 538.3±60.0 °C at 760 mmHg and a flash point of 279.3±32.9 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

29621-88-3

Jingsj CID

J-35385-4

Molecular Formula

C₆H₁₂N₂O₄Se₂

Chinese Name

L-硒代胱氨酸

Molecular Weight

334.091 g/mol

Category

Organic Acids

Last updated

8/21/2026