15715-19-2 4,11-Dichloro-5,6,12,13-tetrahydroquino(2,3-b)acridine-7,14-dione EINECS 239-804-3 Quinacridone, 4,11-dichloro-6,13-dihydro- Quino(2,3-b)acridine-7,14-dione, 4,11-dichloro-5,6,12,13-tetrahydro-