2-Naphthalenecarboxylicacid, 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-, calcium salt (1:1)(9CI); 2-Naphthoic acid, 4-(5-chloro-2-sulfo-p-tolylazo)-3-hydroxy-, calciumsalt (6CI); C.I. Pigment Red 48, calcium salt (1:1) (7CI,8CI);4-[(3-Chloro-4-methyl-6-sulfophenyl)azo]-3-hydroxy-2-naphthoic acid calciumsalt (1:1); C.I. 15865:2; C.I. Pigment Red 48:2; Calcium 2B Rubine X 2430;Calcium Red 2B; Eljon Rubine 2BS; Finess Red F 2B; Fire Red RF 1120; First Red1547; Irgalite Red C 2B; Irgalite Rubine 2BP; Isol Bona Red 2BCT; Isol Bona RedN 5R; Lionol Red DWG; Lithol Scarlet K 4460; Microlith Red 2C-A; Microlith Red2G-A; Monastral Red RT 139; PR 48:2; Panax Red 2RM; Perma Red 562; PermanentRed 2BS; Pigment Red 48:2; Ponolith Red Y; Radiant Red Lake; Red 2G-A; ResinoRed BX; Rubine Toner 2BA; Rubine Toner 2BOA; Rubine Toner 2BS; Sanyo TintingRed N; Segnale Red 2B1; Segnale Red RS; Seikafast Red 1547; Seikafast Red 1548;Sico Red WRC; Symuler Red 3013; Symuler Red 3014; Watchung Red B; Watc