Benzothioxanthene dicarboxylic anhydride

苯并噻吨二羧酸酐

Also known as: 1H,3H-2-Oxa-6-thiabenzo[a]pyrene-1,3-dione, 1H,3H-thioxantheno[2,1,9-def]-2-benzopyran-1,3-dione, 4,10-benzothioxanthene-3,1'-dicarboxylic acid anhydride, BENZOTHIOANTHENEDICARBOXYLICANHYDRIDE, Benzo[kl]thioxanthene-3,4-dicarboxylic anhydride, Benzothioxanthene-3,4-dicarboxylic anhydride, Benzothioxanthenedicarboxylic acid anhydride, Thioxantheno[2,1,9-def]isochromene-1,3-dione, Thioxantheno[2,1,9-dej]isochromene-1,3-dione, benzo[kl]thioxanthene-3,4-dicarboxylic acid anhydride

Benzothioxanthene dicarboxylic anhydride (CAS 14121-49-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H8O3S and a molecular weight of 304.31900 g/mol. It is also known as 1H,3H-2-Oxa-6-thiabenzo[a]pyrene-1,3-dione, 1H,3H-thioxantheno[2,1,9-def]-2-benzopyran-1,3-dione and 4,10-benzothioxanthene-3,1'-dicarboxylic acid anhydride. Key properties include a boiling point of 602.1ºC at 760mmHg, a density of 1.56g/cm3 and a flash point of 331.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

14121-49-4

Jingsj CID

J-1351771-5

Molecular Formula

C₁₈H₈O₃S

Chinese Name

苯并噻吨二羧酸酐

Molecular Weight

304.31900 g/mol

Category

Organic Acids

Last updated

8/21/2026