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?? ??	CAS	MF
Iron oxide brown	52357-70-7	（Fe2O3+FeO)·nH2O
Pigment Yellow 63	14569-54-1	C32H24Cl4N6O4
N-(4-Chloro-2-methylphenyl)-2-[(4-chloro-2-nitrophenyl)azo]-3-oxobutanamide	32432-45-4	C17H14Cl2N4O4
calcium 4-[(4-chloro-3-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate	7538-59-2	C17H13CaClN2O6S
Manganese, 4-[(4-chloro-3-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylic acid complex	52233-00-8	C17H9ClMnN2O6S