The chemical Palbociclib has a designated molecular formula of C24H29N7O2 and a molecular weight of 447.543 g/mol. Synonyms may include: PD-0332991, 6-Acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-ylpyridin-2-ylamino)-8H-pyrido(2,3-d)pyrimidin-7-one, PD0332991, PD 0332991, PD 332991, UNII-G9ZF61LE7G, Ibrance (ChemID). Palbociclib has been assigned a MeSH pharmacological action of: Antineoplastic, Protein Kinase Inhibitor.