英文名称:Vat Blue 4B; Tetrabromoindigo; Vat Blue 5; (2Z)-5,5',7,7'-Tetrabromo-2,2'-Biindole-3,3'(1H,1'H)-Dione; C.I. Vat Blue 5; (2E)-5,5',7,7'-Tetrabromo-2,2'-Biindole-3,3'(1H,1'H)-Dione; C.I. 73065; 5,7-Dibromo-2-(5,7-Dibromo-1,3-Dihydro-3-Oxo-2H-Indol-2-Ylidene)-1,2-Dihydro-3H-Indol-3-One; (2E)-5,5',7,7'-Tetrabromo-2,2'-Biindole-3,3'(1H,1'H)-Dione; Ciba Blue 2B; (2Z)-5,5',7,7'-Tetrabromo-2,2'-Biindole-3,3'(1H,1'H)-Dione; Cibablue; Ciba Blue 2B