Water-soluble monoazo cationic dyestuffs derived from 1-phenyl-3

Details Water-soluble monoazo cationic dyestuffs derived from 1-phenyl-3 Water-soluble monoazo cationic dyestuffs derived from 1-phenyl-3

1977-11-16

1981-12-29

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260147, 260162, C09B 2922, C09B 2936

Patent

active

043082050

ABSTRACT:
A new class of water-soluble monoazo cationic dyestuffs free from sulphonic or carboxylic acid groups is disclosed. A process for preparing the new dyestuffs, which are derived from 1-phenyl-3-aminopyrazoles, is also disclosed.

REFERENCES:
patent: 2972508 (1961-02-01), Kruckenberg et al.
patent: 3515715 (1970-06-01), Straley et al.

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