1,2-dihydro-3,4,5,6-tetraphenylphthalic anhydride is a chemical compound registered under CAS number 6971-41-1, with the molecular formula C32H22O3 and a molecular weight of about 454.52 g/mol. Its EINECS (EC) number is 230-197-0. It is also known as 3a,7a-Dihydro-4,5,6,7-tetraphenyl-1,3-isobenzofurandione; 4,5,6,7-Tetraphenyl-3a,7a-dihydroisobenzofuran-1,3-dione; Einecs 230-197-0. CKSPharm supplies 1,2-dihydro-3,4,5,6-tetraphenylphthalic anhydride for laboratory research and bulk production; product code 1294562. Send an inquiry for purity, packaging, price and lead time.