5H-Benzo(a)phenoxazin-5-one, 9-(diethylamino)- 72506-41-3 7385-67-3 9-(Diethylamino)-5H-benzo(a)phenoxazin-5-one 9-(Diethylamino)benzo(a)phenoxazin-5(5H)-one EINECS 230-966-0 Nile red