Quinophthalone dyestuffs

Details Quinophthalone dyestuffs Quinophthalone dyestuffs

1976-07-02

1978-07-18

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260283S, 8179, C07D21522, C09B 2500

Patent

active

041015517

ABSTRACT:
The invention relates to water-insoluble quinophthalone dyestuffs of the formula ##STR1## in which T represents W--Ar or ##STR2## and Ar denotes aryl,

REFERENCES:
patent: 3655670 (1972-04-01), Spietschaka et al.
patent: 3655672 (1972-04-01), Spietschka et al.
patent: 3823147 (1974-07-01), Spietschka et al.
patent: 3872131 (1975-03-01), Wallace
patent: 3891388 (1975-06-01), Neeff
patent: 3981873 (1976-09-01), Dehnert

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