Basic

CAS No.	89-32-7
Product Name	1,2,4,5-Benzenetetracarboxylic anhydride
Synonyms	Pyromellitic dianhydride; 1,2,4,5-Benzenetetracarboxylic dianhydride; benzene-1,2:4,5-tetracarboxylic dianhydride; PMDA; 1H,3H-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone; Pyromellitic Dianhydride
Molecular Formula	C10H2O6
Molecular Weight	218.1193

Physical property

Density	1.885g/cm3
Melting point	283-287℃
Boiling point	398.6°C at 760 mmHg
Flash point	183.5°C
Water solubility	decomposes
Refractive index	1.708

Hazard Symbols	Xn:Harmful;
Risk Codes	R41:; R42/43:;
Safety Description	S22:; S24:; S26:; S37/39:;