| abstract |
A compound which can be used as a dye and is representednby the following general formulae (I), (II) and (III). In the generalnformulae, A and B each independently represents a monovalentnheterocyclic group bonded to an azo group by a carbon atom of thenmonovalent heterocyclic group; m and n each independentlynrepresents one of 0 and 1; and M represents one of a hydrogen atomnand a monovalent positive ion. |