Synonyms:
3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylic acid barium salt ; 2-naphthalenecarboxylic acid, 3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-, barium salt ; pigment red 57:2 (c.i. 15850:2) ; barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate ; d and c red no. 6, barium lake ; c.i. pigment red 57:2 ; 2-naphthalenecarboxylic acid, 3-hydroxy-4-(4-methyl-2-sulfophenyl)azo-, barium salt (1:1) ; d and c red no. 6,barium lake ; 2-naphthalenecarboxylic acid,3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-,barium salt ; barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)azo]-2-naphthoate
