Vat Brown 22 C.I. Vat Brown 22 C.I.Vat Brown 22:C.I.71115 C.I. Vat Brown 22(7CI,8CI,9CI) Vat Brown 22 ISO 9001:2015 REACH Bisbenzimidazobenzo[lmn][3,8]phenanthrolinedione, dichloro- 3,12-Dichlorobisbenzimidazo[2,1-b:1',2'-j]benzo[lmn][3,8]phenanth roline-6,9-dione