| abstract |
PCT No. PCT/GB97/00483 Sec. 371 Date Nov. 3, 1998 Sec. 102(e) Date Nov. 3, 1998 PCT Filed Feb. 21, 1997 PCT Pub. No. WO97/32932 PCT Pub. Date Sep. 12, 1997A compound of Formula (1) or a salt thereof: wherein: J is -OR4 or -NR4R5; R4 is H or optionally substituted alkyl, aryl or acyl; and R4 and R5 taken together with the N atom to which they are attached form a 5- or 6-membered carbocyclic group optionally containing a ring oxygen atom; A is optionally substituted phenylene or optionally substituted naphthylene; Y is a substituted or unsubstituted naphthylene or phenylene ring; R1 is H or optionally substituted alkyl, alkylcarbonyl, alkylsulphonyl, alkoxycarbonyl, alkoxysulphonyl, arylcarbonyl or arylsulphonyl; T and T1 each independently is H or SO3H; and R is, for example, H or optionally substituted alkyl or aryl. The compounds are used as black colorants for ink jet printing inks. |