CI 15525;PIGMENT RED 68;Einecs 227-456-5;C.I. PIGMENT RED 68);Pigment red 68 calcium-sodium salt (C.I. 15525);calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate];Bis[2-chloro-5-[(2-hydroxy-1-naphthalenyl)azo]-4-(sodiosulfo)benzoic acid]calcium salt;2-Chloro-5-((2-hydroxy-1-naphthalenyl)azo)-4-sulfobenzoic acid, calcium sodium salt (2:1:2);Benzoic acid, 2-chloro-5-(2-hydroxy-1-naphthalenyl)azo-4-sulfo-, calcium sodium salt (2:1:2);Benzoic acid, 2-chloro-5-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-4-sulfo-, calcium sodium salt (2:1:2)