1,2-Benzenedicarboperoxoic acid, bis(1,1-dimethylethyl) ester 2155-71-7 DI-TERT-BUTYL DIPEROXYPHTHALATE Di-tert-butyl diperphthalate Di-tert-butyl perphthalate NSC43583 Perbutyl MA Peroxyphthalic acid, di-tert-butyl ester