1,1,2,2-Tetraphenyl-(4,4-bipyrazolidine)-3,3,5,5-tetrone is a chemical compound registered under CAS number 3474-99-5, with the molecular formula C30H22N4O4 and a molecular weight of about 502.52 g/mol. It is also known as 1,1,2,2-Tetraphenyl-4,4-bipyrazolidine-3,3,5,5-tetrone; DA-381. FireTardant supplies 1,1,2,2-Tetraphenyl-(4,4-bipyrazolidine)-3,3,5,5-tetrone for laboratory research and bulk production; product code 419205. Send an inquiry for purity, packaging, price and lead time.