[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone (81-30-1)

Identification
Name:	[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone
Synonyms:	1,4,5,8-Naphthalenetetracarboxylic1,8:4,5-dianhydride (7CI,8CI);Naphthalenetetracarboxylic dianhydride (6CI);1,4,5,8-Naphthalenetetracarboxylic acid dianhydride;1,8:4,5-Naphthalenetetracarboxylic dianhydride;2,7-Dioxapyrene-1,3,6,8-tetrone;NSC 84241;NTCDA;Naphthalenetetracarboxylicanhydride;Naphthalic 1,8:4,5-dianhydride;
CAS:	81-30-1
EINECS:	201-342-5
Molecular Formula:	C₁₄H₄O₆
Molecular Weight:	268.18
InChI:	InChI=1/C14H4O6/c15-11-5-1-2-6-10-8(14(18)20-12(6)16)4-3-7(9(5)10)13(17)19-11/h1-4H
Molecular Structure:
Properties
Flash Point:	280.4°C
Boiling Point:	617°C at 760 mmHg
Density:	1.79g/cm³
Refractive index:	1.781
Flash Point:	280.4°C
Sensitive:	Moisture Sensitive
Safety Data
Hazard Symbols	Xi:Irritant