The Canadian Department of Environment and the Department of Health has announced their final decision after screening assessments of 61 azo direct dyes and eight azo reactive dyes, and 6 azo metal complexes and other azo substances. Details on the four azo metal complexes and two additional azo substances are provided below:
|Benzenediazonium, 4-[(2,6-dichloro-4-nitrophenyl)azo]-2,5-dimethoxy-, (T-4)-tetrachlorozincate(2-) (2:1)||63224-47-5|
|Spiro[isobenzofuran-1(3H),9′(8′aH)-xanthylium], 3′,6′-bis(diethylamino)-3-oxo-, chloride, compd. with [4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-||72391-06-1|
|Benzenesulfonamide, 4-[[4-[[4-(2-hydroxybutoxy)-3-methylphenyl]azo]phenyl]amino]-3-nitro-N-(phenylsulfonyl)-, monolithium salt||83221-38-9|
|Amines, C10–14-branched and linear alkyl, bis[2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)]chromate(1-)||85029-57-8|
|Xanthylium, 9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethyl-, hydroxy[2-hydroxy-5-nitro-3-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo] benzenesulfonato(3-)]chromate(1-)||94276-35-4|
They have concluded that no further action on the substances since they do not meet any of the criteria under section 64 of the Canadian Environmental Protection Act, 1999.