Synonyms:

Pyromellitic Dianhydride 89-32-7 PMDA;89-32-7 PMDA Pyromellitic Dianhydride;1,2,4,5-Benzenetetracarboxylic 1,2:4,5-dianhydride;1,2,4,5benzenetetracarboxylic1,2:4,5dianhydride;1,2,4,5-benzenetetracarboxylic1,2:4,5-dianhydride;1,2,4,5-Benzenetetracrboxylicdianhydride;pyromelliticacidanhydride;pyromelliticaciddianhydride

Canonical SMILES: C1=C2C(=CC3=C1C(=O)OC3=O)C(=O)OC2=O

HS Code: 29173980

Density:1,68g/cm3

Boiling Point:397-400 °C(lit.)

Refractive Index:1.6000(estimate)

Flash Point: 380°C

Melting Point: 283-286 °C(lit.)

Appearance: FinePowder

Hazard Codes: Xn

Risk Statements:  41-42/43

Safety Statements: 22-24-26-37/39

WGK Germany: 1