3,6-Difluorophthalic anhydride

3,6-二氟邻苯二甲酸酐

Also known as: 4,7-difluoroisobenzofuran-1,3-dione, 1,3-Isobenzofurandione, 4,7-difluoro-, 4,7-Difluoro-1,3-isobenzofurandione, 5,8-Difluoro-1,3-Isobenzofurandione, 3,6-Difluoro-1,2-benzenedicarboxylic acid anhydride, 3,6-Difluorophthalic Anhydride, 4,7-Difluoro-2-benzofuran-1,3-dione, 4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione

3,6-Difluorophthalic anhydride (CAS 652-40-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H2F2O3 and a molecular weight of 184.096 g/mol. It is also known as 4,7-difluoroisobenzofuran-1,3-dione, 1,3-Isobenzofurandione, 4,7-difluoro- and 4,7-Difluoro-1,3-isobenzofurandione. Key properties include a melting point of 218-221 °C(lit.), a boiling point of 315.7±32.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 140.1±20.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

652-40-4

Jingsj CID

J-1420241-4

Molecular Formula

C₈H₂F₂O₃

Chinese Name

3,6-二氟邻苯二甲酸酐

Molecular Weight

184.096 g/mol

Category

Organic Acids

Last updated

8/21/2026