2-Naphthalenecarboxylic acid, 4-((4-chloro-5-methyl-2-sulfophenyl)azo)-3-hydroxy- 27757-95-5 4-((4-Chloro-5-methyl-2-sulphophenyl)azo)-3-hydroxy-2-naphthoic acid C.I. Pigment Red 52 EINECS 248-640-1