CI 20040 is a chemical compound, a disazo synthetic yellow dye also known by the name Pigment Yellow 16 Chemical Name: 2-[(2,4-dichlorophenyl)diazenyl]-N-[4-[4-[[2-[(2,4-dichlorophenyl)diazenyl]-3-oxobutanoyl]amino]-3-methylphenyl]-2-methylphenyl]-3-oxobutanamide What it is used for and where Cosmetics Restricted cosmetic ingredient as IV/45 a...