4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone

4-氨基-1-[(2R,5S)-2-(羟基甲基)-1,3-氧硫杂环戊-5-基]-2(1H)-嘧啶酮

Also known as: 4-Amino-1-(cis-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)pyrimidin-2(1H)-one, 2(1H)-Pyrimidinone, 4-amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-, rel-, rac-cis-Lamivudine, ((2RS,5SR)-Lamivudine)

4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone (CAS 136891-12-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H11N3O3S and a molecular weight of 229.25624 g/mol. It is also known as 4-Amino-1-(cis-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)pyrimidin-2(1H)-one, 2(1H)-Pyrimidinone, 4-amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-, rel- and rac-cis-Lamivudine. Key properties include a melting point of 187-188℃ and a density of 1.73. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

136891-12-8

Jingsj CID

J-1530035-7

Molecular Formula

C₈H₁₁N₃O₃S

Chinese Name

4-氨基-1-[(2R,5S)-2-(羟基甲基)-1,3-氧硫杂环戊-5-基]-2(1H)-嘧啶酮

Molecular Weight

229.25624 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026