CAS 66698-27-9

Risperidone Impurity 1

CAS: 66698-27-9

Formula: C₁₁H₁₆N₂O₂

Color and Shape: White To Off-White Solid

Molecular weight: 208.26

Ref: 4Z-R-0636

3-(2-Hydroxyethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Controlled Product

CAS: 66698-27-9

Formula: C₁₁H₁₆N₂O₂

Color and Shape: Neat

Molecular weight: 208.257

Ref: TR-H825810

3-(2-Hydroxyethyl)-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one

CAS: 66698-27-9

3-(2-Hydroxyethyl)-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one is an impurity in the drug paliperidone. It is a pyridinic acid derivative and has been used as a ligand in X-ray crystallography to identify protein structures. 3-(2-Hydroxyethyl)-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4 one is also known to have high detection sensitivity and can be used to analyze ammonium formate. This impurity has been detected in the urine of patients taking paliperidone extended release tablets. To remove this impurity from the drug paliperidone, it must be purified by liquid chromatography or liquid chromatography with high performance liquid chromatography (

Formula: C₁₁H₁₆N₂O₂

Purity: Min. 95%

Molecular weight: 208.26 g/mol

Ref: 3D-RCA69827

Risperidone Hydroxyethyl Impurity

CAS: 66698-27-9

Formula: C₁₁H₁₆N₂O₂

Molecular weight: 208.26

Ref: ST-EA-CP-R15023