Pentamethine dyestuffs and derivatives

Details Pentamethine dyestuffs and derivatives Pentamethine dyestuffs and derivatives

1990-08-21

1992-08-11

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544143, 544333, 548374, 548255, 546273, C07D40106, C07D40306, C07D41306

Patent

active

051380706

ABSTRACT:
Dyestuffs of the formula ##STR1## and their base derivatives, in which the radicals have the meaning given in the description, are outstandingly suitable for laser transfer printing or as optical recording materials.

REFERENCES:
patent: 4405788 (1983-09-01), Locatell

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