Disazo dyes containing an alkanoylamino group and a substituted

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

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534732, 8681, 8924, 8917, C09B 31047, D06P 139

Patent

active

055278892

ABSTRACT:
Azo dyes of formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, unsubstituted C.sub.2 -C.sub.4 alkanoylamino or C.sub.2 -C.sub.4 alkanoylamino which is substituted by hydroxy, sulfo or sulfato, or are halogen or sulfo,

REFERENCES:
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patent: 4194883 (1980-03-01), Fuchs
patent: 4340385 (1982-07-01), Rodriguez et al.
patent: 4419290 (1983-12-01), Dehnert et al.
patent: 4466920 (1984-08-01), Uehlinger
patent: 4749784 (1988-06-01), Feeman
patent: 5094665 (1992-03-01), Mausezahl
patent: 5420258 (1995-05-01), Schaetzer et al.

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