Synonyms:

(2)benzopyrano(6,5,4-def)(2)benzopyran-1,3,6,8-tetrone;[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone;1,4,5,8-Naphthalenetetracarboxylic 1,8:4,5-dianhydride;1,4,5,8-Naphthalenetetracarboxylic acid anhydride;1,4,5,8-Naphthalenetetracarboxylic acid dianhydride;1,4,5,8-Naphthalenetetracarboxylic acid, 1,8:4,5-dianhydride;Naphthaline-1,4,5,8-tetracarbonic acid, dianhydride;1,4,5,8-Naphthalenetetracarboxylic

Canonical SMILES: C1=CC2=C3C(=CC=C4C3=C1C(=O)OC4=O)C(=O)OC2=O

HS Code: 29173990

Density:1.5122(roughestimate)

Boiling Point:371.34°C(roughestimate)

Refractive Index:1.5230(estimate)

Melting Point: >300 °C(lit.)

Hazard Codes: Xi

Risk Statements:  36/37/38

Safety Statements: 26-36

WGK Germany: 2