Methazolamide

醋甲唑胺

Also known as: Neptazane, CL 8490, N-(3-methyl-5-sulfamoyl-1,3,4-thiadiazol-2-ylidene)acetamide, 2-acetylimino-3-methyl-delta4-1,3,4-thiadiazoline-5-sulfonamide, 5-acetylimino-4-methyl-delta2-1,3,4-thiadiazoline-2-sulfonamide, N-[(2E)-5-(aminosulfonyl)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene]acetamide, N-[(2Z)-5-(aminosulfonyl)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene]acetamide, Acetamide, N-[(2E)-5-(aminosulfonyl)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene]-, Acetamide, N-[(2Z)-5-(aminosulfonyl)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene]-, EINECS 209-066-7, MFCD00083416, Metazolamide [DCIT], Methazolamide [BAN:INN:JAN], Methazolamide (JAN/USP), 4-27-00-08221 (Beilstein Handbook Reference)

Methazolamide (CAS 554-57-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H8N4O3S2 and a molecular weight of 236.272 g/mol. It is also known as Neptazane, CL 8490 and N-(3-methyl-5-sulfamoyl-1,3,4-thiadiazol-2-ylidene)acetamide. Key properties include a melting point of 208ºC (dec.), a boiling point of 402.0±28.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 196.9±24.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

554-57-4

Jingsj CID

J-1957199-1

Molecular Formula

C₅H₈N₄O₃S₂

Chinese Name

醋甲唑胺

Molecular Weight

236.272 g/mol

Category

Organic Bases

Last updated

8/21/2026