Coumarin dyestuffs

Details Coumarin dyestuffs Coumarin dyestuffs

1978-10-23

1981-01-13

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D31116

Patent

active

042448727

ABSTRACT:
Disclosed are cationic dyestuffs being coumarin or coumarinimide derivatives free from sulpho groups, bearing a 7-amino group and being characterized by having, in the 3-position, a cationic group of formula (a), ##STR1## in which A.sup..crclbar. signifies an anion,
either

REFERENCES:
patent: 3985772 (1976-10-01), Scheuermann et al.

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