21441-01-0 4H-3,1-BENZOXAZIN-2-ONE, 1,2-DIHYDRO-6,8-DICHLORO-4,4-DIMETHYL- 6,8-Dichloro-1,2-dihydro-4,4-dimethyl-4H-3,1-benzoxazin-2-one BRN 0651720