Heavy metal-containing monoazo dyes

Details Heavy metal-containing monoazo dyes Heavy metal-containing monoazo dyes

1987-04-06

1988-10-11

Higel, Floyd D.

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

Organic compounds

Azo

534602, 534603, 534605, 534619, 534620, 534624, 534626, 534627, 534628, 534629, 534638, 534641, 534642, 534643, 534720, 534722, C09B 4518, C09B 4512, C09B 62012, D06P 110

Patent

active

047772476

ABSTRACT:
A dyestuff which, in the form of its free acid, corresponds to the formula ##STR1## wherein W=a direct bond or a bridge member to a C atom of the naphthalene nucleus C or the benzene nucleus A, wherein the bridge member is ##STR2## wherein R=H or C.sub.1 -C.sub.4 -alkyl,

REFERENCES:
patent: 3125561 (1964-03-01), Beffa et al.
patent: 3551170 (1970-12-01), Kuster
patent: 4077953 (1978-03-01), McCrae et al.
patent: 4086223 (1978-04-01), Steiner et al.

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