4,5-Difluorophthalic anhydride

4,5-二氟邻苯二甲酸酐

Also known as: 5,6-Difluoroisobenzofuran-1,3-dione, 5,6-Difluoro-2-benzofuran-1,3-dione, 5,6-difluoro-1,3-Isobenzofurandione, 1,3-Isobenzofurandione, 5,6-difluoro-, 5,6-difluoro-1,3-dihydro-2-benzofuran-1,3-dione, 4,5-Difluorophthalic acid anhydride

CAS No.
18959-30-3
Jingsj CID
J-1494946-7
Molecular Formula
C8H2F2O3
Chinese Name
4,5-二氟邻苯二甲酸酐
Molecular Weight
184.096 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point99-100℃
Boiling Point321.2±32.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point143.3±20.0 °C

Frequently Asked Questions

What is the CAS number of 4,5-Difluorophthalic anhydride?

18959-30-3

What are the molecular formula and molecular weight of 4,5-Difluorophthalic anhydride?

C8H2F2O3, molecular weight 184.096 g/mol

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026