Basic information
CAS NO
2421-28-5
EINECS
219-348-1
Molecular Formula
C17H6O7
Molecular Weight
322.2253
English Name
3,3',4,4'-Benzophenonetetracarboxylic dianhydride
Synonyms
BTDA, 4,4-Carbonyldiphthalic anhydride, benzophenone-3,3:4,4-tetracarboxylic dianhydride, BTDA, 3,3,4,4-Benzophenontetracarbonsaeuredianhydride, 1,3-Isobenzofurandione, 5,5'-carbonylbis-, 3,3',4,4'-Benzophenonetetracarboxylic acid dianhydride, 3,3',4,4'-Tetracarboxybenzophenone dianhydride, 3,3',4,4'-benzophenonetetracarboxylicaciddianhydride, 3-Isobenzofurandione,5,5'-carbonylbis-1, 4,4'-Carbonylbis[phthalic anhydride], 4,4'-Diphthalic anhydride ketone, 5,5'-carbonylbis-3-isobenzofurandione, 5,5'-carbonylbis(2-benzofuran-1,3-dione), 3,3',4,4'-Benzophenone tetracarboxylic dianhydride, Benzophenone-3,3',4,4'-tetracarboxylic dianhydride, 3,3,4,4-Benzophenonetetracarboxylic dianhydride
Physical and Chemical Properties
Density
1.662g/cm3
Refractive index
1.699
Melting point
219-226℃
Boiling point
638.8°C at 760 mmHg
Flash point
286.1°C
Water Solubility
REACTS
Vapour Pressure
3.25E-16mmHg at 25°C
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