Patent ID: 6699976
Filing Date: 2004-03-02
Classification: C09B

Abstract:
A polyazo compound or salt thereof represented by the following formulae (I) or (II): wherein,A represents a phenyl having sulfo and/or carboxyl and optionally having a lower alkyl or lower alkoxy, or a naphthyl having 1 to 3 sulfos, R1 to R6 are the same or different and represent hydrogen, lower alkyl or lower alkoxy, m and n each independently represents 0 or 1, R7 represents hydrogen or sulfo, D and E each independently represents â€”NHCOâ€” or â€”N&boxH;Nâ€”, G represents â€”CH2â€”, alkylene having 2-4 carbon atoms, phenylene or â€”CH&boxH;CHâ€”, and R8 represents sulfo, carboxyl or lower alkoxycarbonyl, provide that, when G represent phenylene, n is 0.