Cationic indazole-azo-5-amino pyrazole dyestuffs

Details Cationic indazole-azo-5-amino pyrazole dyestuffs Cationic indazole-azo-5-amino pyrazole dyestuffs

1973-03-14

1977-04-12

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

8 26, 260162, 260163, 260310R, 260310C, C09B 2938, C09B 4512, D06P 370

Patent

active

040174794

ABSTRACT:
The present invention relates to a dye salt of the formula ##STR1## WHEREIN R.sub.1 represents lower alkyl or lower alkyl substituted by hydroxyl, cyano, carbamoyl or lower alkoxy-carbonyl, R.sub.2 represents hydrogen, lower alkyl, hydroxy-lower alkyl, cyano-lower alkyl, benzyl, cyclohexyl, phenyl or phenyl substituted by lower alkyl, lower alkoxy, lower alkylsulfonyl, nitro, chlorine or bromine, R.sub.3 represents methyl or methoxy, R.sub.4 represents lower alkyl, cyano-lower alkyl, carbamoyl-lower alkyl or lower alkoxy-carbonyl-lower alkyl, and is bound to one of the two ring nitrogen atoms which are free from R.sub.1 and R.sub.2, Y.sup.- represents an anion and n represents 1 or 2, and the benzene ring A is unsubstituted or substituted by chlorine, bromine, nitro, lower alkyl, lower alkoxy or lower alkylsulfonyl.
The new dyestuffs have yellow to golden yellow shades and exhibit excellent fastness to light, perspiration, washing and decatising.

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