Synonyms: Nickel,[1,3-dihydro-5,6-bis[[(2-hydroxy-1-naphthalenyl)methylene]amino]-2H-benzimidazol-2-onato(2-)-N5,N6,O5,O6]-,(SP-4-2)-; 2H-Benzimidazol-2-one,1,3-dihydro-5,6-bis[[(2-hydroxy-1-naphthalenyl)methylene]amino]-, nickelcomplex; C.I. 486150; C.I. Pigment Orange 68; PV Fast Orange 6RL; PigmentOrange 68; Sandorin Orange 6RL