4215-99-0 C.I. 67915 C.I. Vat Blue 33 Indanthren Turquoise Blue 3GK NSC299136 Naphth[2,3-c]acridan-5,8,14-trione, 6-amino-10,12-dichloro- Naphth[2,3-c]acridine-5,8,14(13H)-trione, 6-amino-10,12-dichloro- Palanthrene Turquoise Blue 3GK