Patent ID: 6517620
Filing Date: 2003-02-11
Classification: C09B,C09D

Abstract:
A mono-azo compound of Formula (1) and salts thereof: wherein:A is N, Câ€”Cl, Câ€”CN or Câ€”NO2; R1 is H or optionally substituted alkyl; G is sulpho, carboxy, optionally substituted alkyl, optionally substituted alkoxy, â€”CF3 or â€”PO3H2; L1 and L2 are each independently â€”SR2, â€”OR3 or â€”NR4R5; R2, R3, R4 and R5 are each independently H, optionally substituted alkyl or a group of the Formula (4) or Formula (5) wherein:each R11 independently is C1-6-alkoxy, C1-6-hydroxyalkoxy, hydroxy, halo, nitro, amino, â€”COC1-6-alkyl, â€”NHCOC1-6-alkyl or â€”NHC1-6-hydroxyalkyl; each Q independently is optionally substituted C1-30-alkyl or a group of the Formula â€”Zâ€”Q1; each Z independently is a divalent linking group; each Q1 independently is optionally substituted C1-30-alkyl; n is 0 to 5; m is 1 or 2; (n+m)=1 to 5; any optional substituent on R2, R3, R4 and R5 being other than sulphato or vinyl sulphone; or R4 and R5 together with the nitrogen to which they are attached form an optionally substituted five or six membered ring; provided that: (a) L1 and L2 are free from carboxy, sulpho and â€”PO3H2 groups; (b) L1 and L2 are not both â€”NH2; and (c) L1 and L2 are not both hydroxyethylamino.