Catsyn offer gram to tons of 1,5:6,10-Dimethanooxepino[4,5-D]oxepin-2,4,7,9(1H,5H)-tetrone, tetrahydro- | CAS 4945-72-6, its formula is C12H10O6, molecular weight is 250.20g/mol and the purity is usually NLT 98%.