| Synonyms |
C.I. Pigment Red 52, disodium salt; disodium (4Z)-4-[2-(4-chloro-5-methyl-2-sulfonatophenyl)hydrazinylidene]-3-oxo-3,4-dihydronaphthalene-2-carboxylate; disodium 4-(4-chloro-5-methyl-2-sulfonato-phenyl)azo-3-hydroxy-naphthalene-2-carboxylate |