Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1985-08-21
1988-06-28
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534604, 534606, 534589, 544197, 544198, 544208, 544209, 546329, 549 49, C09B 4402, C09B 4408, D21H 380
Patent
active
047540214
ABSTRACT:
Methine-azo compounds of the formulae ##STR1## in which A is the complement to a heterocyclic 5- or 6-membered ring which has a quaternized N atom as a ring member, which can contain further hetero atoms and which can be substituted and/or be fused with carbocyclic or heterocyclic rings,
REFERENCES:
patent: 3185538 (1965-05-01), Voltz et al.
patent: 3331381 (1967-07-01), Raue et al.
patent: 3338660 (1967-08-01), Biedermann
patent: 3933786 (1976-01-01), Peter et al.
patent: 3956264 (1976-05-01), Raue et al.
patent: 4557732 (1985-12-01), Hahnke et al.
Voltz et al., Chemica 1 Abstracts, vol. 61, 12136 to 12137 (1964).
Ciba-Geigy Corporation
Higel Floyd D.
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