Description: Palbociclib lactose adduct 1 is is an impurity of palbociclib. Palbociclib (Pfizer trade name Ibrance, also known as PD-0332991) is a highly selective, orally bioavailable pyridopyrimidine-derived inhibitor of CDK4/6 with IC50 of 11 nM and 16 nM in cell-free assays respectively.

纯度：≥98%