| 摘要 |
PCT No. PCT/GB97/00482 Sec. 371 Date Apr. 21, 1999 Sec. 102(e) Date Apr. 21, 1999 PCT Filed Feb. 21, 1997 PCT Pub. No. WO97/32931 PCT Pub. Date Sep. 12, 1997A compound of the formula (1) or a salt thereof wherein J is a group of the formula (1a) and A, Y, T, T1, R, R1, R4, R5 and R6 are as defined in the specification are useful as black colorants for ink jet printing inks. |
