Triphenodioxazine acid dyes

Details Triphenodioxazine acid dyes Triphenodioxazine acid dyes

1984-03-15

1985-09-17

Raymond, Richard L.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 77, 8658, C07D49804

Patent

active

045422133

ABSTRACT:
Triphenodioxazine dyes which, in the free acid form, have the formula: ##STR1## wherein A is Cl or Br; Y is cyclopentylene, cyclohexylene or (CH.sub.2).sub.x where x is 2, 3 or 4; and

REFERENCES:
patent: 3036071 (1962-05-01), Frey et al.
patent: 4472575 (1984-09-01), Renfrew

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