4-Fluorophthalic anhydride

4-氟邻苯二甲酸酐

Also known as: 5-Fluoro-1,3-isobenzofurandione, 4-Fluorobenzene-1,2-dicarboxylic anhydride, 4-Fluorophthalic acid anhydride, 5-Fluoroisobenzofuran-1,3-dione, 4-FPA, 1,3-Isobenzofurandione, 5-fluoro-

4-Fluorophthalic anhydride (CAS 319-03-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H3FO3 and a molecular weight of 166.11 g/mol. It is also known as 5-Fluoro-1,3-isobenzofurandione, 4-Fluorobenzene-1,2-dicarboxylic anhydride and 4-Fluorophthalic acid anhydride. Key properties include a melting point of 75-79 °C(lit.), a boiling point of 304.1±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 133.3±18.1 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

319-03-9

Jingsj CID

J-14805-8

Molecular Formula

C₈H₃FO₃

Chinese Name

4-氟邻苯二甲酸酐

Molecular Weight

166.11 g/mol

Category

Organic Acids

Last updated

8/21/2026