| abstract |
A second compound according to formula (I) comprising at least 70% by weight of the first compound COP according to formula (I), based on the total weight of the pigment, and from 2.0 to 30.0% by weight, based on the total weight of the pigment Color pigment having a pigment surface containing SEC: Wherein one of R 1 and R 2 is hydrogen and the other of R 1 and R 2 represents —COOR 4 ; R 4 and R 5 represent methyl; R 3 is selected from the group consisting of: However, C * represents the bonding part of R 3 to nitrogen in the formula (I), and in the second compound SEC, R 1 , R 2 , R 3 , R 4 and R 5 are at least one of R 4 and R 5. Has the same meaning as above except that it represents hydrogen. |