5,6-Dimethyl-2-thiouracil

5,6-二甲基-2-硫脲嘧啶

Also known as: 2-Mercapto-5,6-dimethylpyrimidin-4(3H)-one, 2-Mercapto-5,6-dimethylpyrimidine-4-ol, 5,6-Dimethyl-4-hydroxy-2-thiopyrimidine, 5,6-Dimethyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one, 5,6-dimethyl-2-sulfanylidene-1H-pyrimidin-4-one, 5,6-dimethyl-2-thio-uracil, 5,6-dimethyl-2-thioxo-1H-pyrimidin-4-one

5,6-Dimethyl-2-thiouracil (CAS 28456-54-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N2OS and a molecular weight of 156.20600 g/mol. It is also known as 2-Mercapto-5,6-dimethylpyrimidin-4(3H)-one, 2-Mercapto-5,6-dimethylpyrimidine-4-ol and 5,6-Dimethyl-4-hydroxy-2-thiopyrimidine. Key properties include a melting point of 284-288ºC(lit.), a boiling point of 347.3ºC at 760mmHg, a density of 1.29g/cm3 and a flash point of 163.9ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

28456-54-4

Jingsj CID

J-1992664-7

Molecular Formula

C₆H₈N₂OS

Chinese Name

5,6-二甲基-2-硫脲嘧啶

Molecular Weight

156.20600 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026