The chemical Paliperidone has a designated molecular formula of C23H27FN4O3 and a molecular weight of 426.492 g/mol. Synonyms may include: R 76477, 9-Hydroxyrisperidone, (9RS)-3-(2-(4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl))ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimidin-4-one, 4H-Pyrido(1,2-a)pyrimidin-4-one, 3-(2-(4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl)ethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-, Invega, RO76477, UNII-838F01T721, R-76477, 9-OH-risperidone (ChemID). Paliperidone has been assigned a MeSH pharmacological action of: Dopamine D2 Receptor Antagonist, Serotonin 5-HT2 Receptor Antagonist.