Basic

CAS No.	1823-59-2
Product Name	4,4-Oxydiphthalic anhydride
Synonyms	4,4'-Oxydiphthalic dianhydride; 5,5'-oxybis-3-isobenzofurandione; 4-4'-Oxydiphthalic acid anhydride; 4,4'-Oxydiphthalic anhydride; Bis-(3-phthalyl anhydride) ether; ODPA; 4,4'-Oxydiphthalic Acid; 4,4''-Oxybisdiphthalic anhydride; 5,5'-oxybis(2-benzofuran-1,3-dione); Oxydiphthalicanhydride; S-ODPA; Oxydiphthalic  anhydride
Molecular Formula	C16H6O7
Molecular Weight	310.2146

Physical property

Density	1.665g/cm3
Melting point	225-229℃
Boiling point	577.7°C at 760 mmHg
Flash point	260.7°C
Refractive index	1.694

Risk Codes	R52/53:;
Safety Description	S61:;