Compounds having the structure: ##SPC1##WhereinM represents --H, --Li, --Na, --K or --NH.sub.4 ;R.sub.1 represents --H, lower alkyl, lower alkoxy, --Cl or --Br;R.sub.2 represents --H, lower alkyl or --Cl;R.sub.3 represents --H, lower alkyl or lower alkoxy;R.sub.4 represents --H, lower alkyl or lower alkoxy;R.sub.5 represents --H, lower alkyl, lower alkoxy, --Cl, phenyl, or cyclohexyl;R.sub.6 represents --H, lower alkyl or lower alkoxy;R.sub.7 represents --H, lower alkyl, lower alkyl sulfonyl or --SO.sub.2 ##SPC2##whereinR.sub.8 represents --H, --CH.sub.3 or --Cl; the --OR.sub.7 group is located o or p to the azo linkage;m is 1 or 2, n is 0 or 1 and m + n is 2Are useful in the dyeing of polyamides such as nylon, silk and wool, and that are especially useful for the dyeing of the deeper dyeing nylon components of differential dyeing nylon textiles in yellow to scarlet shades.