4,5-dichlorophthalic anhydride

4,5-二氯邻苯二甲酸酐

Also known as: 1,3-Isobenzofurandione, 5,6-dichloro-, 5,6-dichloro-1,3-isobenzofurandione, 5,6-Dichloro-2-benzofuran-1,3-dione, 5,6-dichloroisobenzofuran-1,3-dione, 4,5-Dichlorophalic anhydride, 4,5-dichloro-phthalic acid anhydride, 5,6-dichlorophthalic anhydride, EINECS 213-386-2, MFCD00075034

CAS No.
942-06-3
Jingsj CID
J-1363256-6
Molecular Formula
C8H2Cl2O3
Chinese Name
4,5-二氯邻苯二甲酸酐
Molecular Weight
217.006 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point185-187 °C(lit.)
Boiling Point313.0±22.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point144.8±21.3 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

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

942-06-3

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

C8H2Cl2O3, molecular weight 217.006 g/mol

Is 4,5-dichlorophthalic anhydride hazardous?

Warning

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