Disclosed herein are compositions (e.g., pigment dispersions or ink compositions such as inkjet ink compositions) comprising at least one quinacridone magenta pigment and at least one synergist selected from compounds (A) and (B) having the following structures, wherein each n is an integer independently ranging from 1 to 4, and R
1
-R
3
are each independently selected from H, CH
3
, Cl, and F,
本文揭示了包含至少一种
喹啉胭脂品红
颜料和至少一种协同剂的组合物(例如
颜料分散体或油墨组合物,如喷墨油墨组合物),所述协同剂选自具有以下结构的化合物(A)和(B),其中每个n是独立取值范围为1至4的整数,R1-R3分别独立选择自H、
CH3、Cl和F。