Risperidone E-oxime

Risperidone E-oxime is a potential impurity found in commercial preparations of risperidone. Risperidone (Cay-13629) is a longer-acting benzisoxazole derivative used for treating schizophrenia, and also the psychotic, affective, or behavioral symptoms associated with other disorders. This second-generation antipsychotic was designed to antagonize both D2 and 5-HT2A receptors. It has little effect on cholinergic and beta-adrenergic receptors but does affect alpha2-adrenergic and histamine H1 receptors.Formal Name: 3-[2-[4-[(E)-(2,4-difluorophenyl)(hydroxyimino)methyl]-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one. CAS Number: 691007-09-7. Molecular Formula: C23H28F2N4O2. Formula Weight: 430.5. Purity: >98%. Formulation: (Request formulation change), A solid. SMILES: O=C1N2C(CCCC2)=NC(C)=C1CCN3CCC(/C(C4=CC=C(F)C=C4F)=N\O)CC3. InChi Code: InChI=1S/C23H28F2N4O2/c1-15-18(23(30)29-10-3-2-4-21(29)26-15)9-13-28-11-7-16(8-12-28)22(27-31)19-6-5-17(24)14-20(19)25/h5-6,14,16,31H,2-4,7-13H2,1H3/b27-22+. InChi Key: BRCINVRBDDVLDW-HPNDGRJYSA-N.