2-[(4-Chlor-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutanamid (CAS-nr. 13515-40-7) (Pigment Yellow 73) og salte heraf, når de bruges som ingrediens i produkter til farvning af hår
2-[(4-Chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutanamide (CAS No 13515-40-7) (Pigment Yellow 73) and its salts, when used as a substance in hair dye products