1H-Benz(de)isoquinoline-1,3(2H)-dione, 6-hydroxy-2-(3-methoxypropyl)-5-((4-nitrophenyl)azo)- 4-Hydroxy-3-(4-nitrophenylazo)-N-(3-methoxypropyl)-1,8-naphthalenedicarboximide 42358-42-9 6-Hydroxy-2-(3-methoxypropyl)-5-((4-nitrophenyl)azo)-1H-benz(de)isoquinoline-1,3(2H)-dione EINECS 255-774-4