Laked tris- or tetracationic polymethine dyes

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...

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106 21R, 106234, 106498, C09B 6300

Patent

active

054456720

ABSTRACT:
In laked tris- or tetracationic polymethine dyes I ##STR1## the variables have the following meanings: A is the radical of a fused-on substituted or unsubstituted benzene or naphthalene nucleus,

REFERENCES:
patent: 2140248 (1938-12-01), Retter et al.
patent: 5250207 (1993-10-01), Kormann et al.
Heathcock, Clayton H., The Journal of Organic Chemistry, vol. 57, 1992, Issues 14-18, pp. 4578-4580 No month.

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