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Name: 4,4'-Carbonyldiphthalic anhydride (BTDA)

Synonyms: 

1,3-Isobenzofurandione, 5,5'-carbonylbis-; 

5,5'-Carbonylbis(2-benzofuran-1,3-dione);

Benzophenonetetracarboxylic acid dianhydride;

Benzophenone-tetracarboxylic-dianhydride.

CAS No.: 2421-28-5

EINECS: 219-348-1

MF: C17H6O7

MW: 322.23g/mol

MP: 218-222℃(lit.)

BP: 638.8±40.0℃ at 760 mmHg

FP: 286.1±27.4℃ 

Density: 1.57 g/cm3

Purity: 97% Min.

Appearance: white to yellow powder

Solubility: Reacts with water. 

λ尘补虫=580苍尘(颁贬3颁狈)(濒颈迟.)

Application: Pharmaceutical Raw Intermediates

Package: 25g, 100g, 500g, 1kg, 5kg/Aluminum foil bag; 10kg, 25kg/fiber can.

Storage Conditions: Store in a cool, dry place in a tightly closed container. With inert gas protection.

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