5-Amino-3-methylisothiazole-4-carbonitrile

3-甲基-4-氰基-5-氨基异噻唑

Also known as: 5-amino-3-methyl-1,2-thiazole-4-carbonitrile, 5-amino-4-cyano-3-methylisothiazole, 4-Isothiazolecarbonitrile, 5-amino-3-methyl-, 5-amino-3-methyl-4-isothiazolecarbonitrile, 5-amino-4-cyano-3-methyl-isothiazole

5-Amino-3-methylisothiazole-4-carbonitrile (CAS 41808-35-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5N3S and a molecular weight of 139.178 g/mol. It is also known as 5-amino-3-methyl-1,2-thiazole-4-carbonitrile, 5-amino-4-cyano-3-methylisothiazole and 4-Isothiazolecarbonitrile, 5-amino-3-methyl-. Key properties include a melting point of 202 °C, a boiling point of 198.6±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 73.9±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

41808-35-9

Jingsj CID

J-1062062-7

Molecular Formula

C₅H₅N₃S

Chinese Name

3-甲基-4-氰基-5-氨基异噻唑

Molecular Weight

139.178 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026