C.I.61650 Vat Red 42 Algol Red 5G C.I.Vat Red 42 Vat red 42 (C.I. 61650) C.I.Vat Red 42:C.I.61650 Vat Red 42 ISO 9001:2015 REACH N-(4-benzamido-9,10-dioxoanthracen-1-yl)benzamide N-[4-(benzoylamino)-9,10-diketo-1-anthryl]benzamide N-[4-(benzoylamino)-9,10-dioxoanthracen-1-yl]benzamide