This invention relates to substituted azophthalocyanine pigment precursors which produce uniform mixed colours when their solubilising groups are eliminated. These compounds are of formula (I), wherein m, n and p are each independently of one another 0 or 1, R1, R2, R3 and R4 are each independently of one another a group of formula (a) (b) (c) or a tautomer thereof, R5 is C1-C12alkyl, C1-C12alkoxy, cyano or (d), R6, R7 and R9 are H, E5, C1-C12alkyl, (e), (f), (g) or (h) R8 is H, halogen, C1-C12alkyl or C1-C12alkoxy, R10, R11, R12, R13 and R14 are each independently of one another H, C1-C12alkyl, C1-C12alkoxy, trifluoromethyl, nitro, halogen or (i), R15 is C1-C12alkyl, or C6-C10aryl which is unsubstituted or substituted by 1 to 3 substituents selected from the group consisting of C1-C12alkyl, C1-C12alkoxy, trifluoromethyl, nitro and halogen, M is two hydrogen atoms or a divalent metal, oxometal, halogenometal or hydroxymetal, where the divalent metal may be additionally coordinated at one or two identical or different neutral ligands, and E1, E2, E3, E4, E5, E6 and E7 are each independently of one another hydrogen or a group of formula (j), where at least one group E1, E2, E3, E4, E5, E6 or E7 in a group R1, R2, R3 or R4 is not hydrogen, and L is any group suitable for solubilising.