Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1977-08-10
1979-06-26
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
2603265B, 26032627, 260465H, 8 1B, 562435, 560 21, C07D40106, C07D70992, C07D24144
Patent
active
041593790
ABSTRACT:
A dye of the formula ##STR1## WHEREIN R is alkyl, alkenyl, cycloalkyl, aralkyl or hydrogen,
Schwander Hansrudolf
Zickendraht Christian
Berch Mark L.
Ciba-Geigy AG
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