Risperidone

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Risperidone API Reference standards and its EP Impurities, USP Impurities, non pharmacopeial Impurities, listed below & also offered custom synthesis for unknown Impurities. If require any contact info@drjcrbio.com, sales@drjcrbio.com

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    Product Name : Risperidone-C-961 [Impurity-2 (RSP-2)] ;(3-(2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido-[1,2-a]pyrimidin-4-one) |63234-80-0

    Code: JCRPD-08
    CAS: 63234-80-0
    Chemical Formula:C11H15ClN2O
    Molecular Weight: 226.7
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Risperidone-C-961 [Impurity-2 (RSP-2)] ;(3-(2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido-[1,2-a]pyrimidin-4-one) |63234-80-0  is useful as reference Impurity standard.
    Risperidone-C-961 [Impurity-2 (RSP-2)]  ;(3-(2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido-[1,2-a]pyrimidin-4-one)  |63234-80-0
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    Product Name : Risperidone-C-957 (Impurity-1) ;(6-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole) |84163-13-3

    Code: JCRPD-07
    CAS: 84163-13-3
    Chemical Formula:C12H14ClFN2O
    Molecular Weight: 256.7
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Risperidone-C-957 (Impurity-1) ;(6-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole) |84163-13-3  is useful as reference Impurity standard.
    Risperidone-C-957 (Impurity-1) ;(6-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole)  |84163-13-3
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    Product Name : RisperidoneEP Impurity H Or Risperidone difluoroketone ; (3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) |158697-67-7

    Code: JCRPD-06
    CAS: 158697-67-7
    Chemical Formula:C23H27F2N3O2
    Molecular Weight: 415.48
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  RisperidoneEP Impurity H Or Risperidone difluoroketone ; (3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) |158697-67-7 is useful as reference Impurity standard.
    RisperidoneEP Impurity H Or Risperidone difluoroketone ; (3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one)  |158697-67-7
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    Product Name : RisperidoneEP Impurity K Or Desfluoro risperidone ;(3-{2-[4-(1,2-Benzisoxazol-3-yl)piperidin-1-yl]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) | 106266-09-5

    Code: JCRPD-05
    CAS: 106266-09-5
    Chemical Formula:C23H28N4O2
    Molecular Weight: 392.49
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  RisperidoneEP Impurity K Or Desfluoro risperidone ;(3-{2-[4-(1,2-Benzisoxazol-3-yl)piperidin-1-yl]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) | 106266-09-5 is useful as reference Impurity standard.
    RisperidoneEP Impurity K Or Desfluoro risperidone ;(3-{2-[4-(1,2-Benzisoxazol-3-yl)piperidin-1-yl]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) | 106266-09-5
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    Product Name : RisperidoneEP Impurity E Or 6-Methyl Risperidone ;((6RS)-3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2,6-dimethyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one.) |1346602-28-5

    Code: JCRPD-04
    CAS: 1346602-28-5
    Chemical Formula:C24H29FN4O2
    Molecular Weight: 424.51
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  RisperidoneEP Impurity E Or 6-Methyl Risperidone ;((6RS)-3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2,6-dimethyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one.) |1346602-28-5 is useful as reference Impurity standard.
    RisperidoneEP Impurity E Or 6-Methyl Risperidone ;((6RS)-3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2,6-dimethyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one.) |1346602-28-5
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    Product Name : RisperidoneEP Impurity D Or 5-Fluororisperidone ;(3-[2-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) |1199589-74-6

    Code: JCRPD-03
    CAS: 1199589-74-6
    Chemical Formula:C23H27FN4O2
    Molecular Weight: 410.48
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  RisperidoneEP Impurity D Or 5-Fluororisperidone ;(3-[2-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) |1199589-74-6 is useful as reference Impurity standard.
    RisperidoneEP Impurity D Or 5-Fluororisperidone  ;(3-[2-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) |1199589-74-6
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    Product Name : RisperidoneEP Impurity C Or 9-Hydroxy Risperidone ;((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) |144598-75-4

    Code: JCRPD-02
    CAS: 144598-75-4
    Chemical Formula: C23H27FN4O3
    Molecular Weight: 426.48
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: RisperidoneEP Impurity C Or 9-Hydroxy Risperidone ;((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) |144598-75-4   is useful as reference Impurity standard.
    RisperidoneEP Impurity C Or 9-Hydroxy Risperidone  ;((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) |144598-75-4
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    Product Name : RisperidoneEP Impurity B Or Z-Oxime ;(3-[2-[4-[(Z)-(2,4-Difluorophenyl)(hydroxyimino)methyl]piperidin-1- yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) 132961-05-8 |

    Code: JCRPD-01
    CAS: 132961-05-8
    Chemical Formula:C23H28F2N4O2
    Molecular Weight: 430.49
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: RisperidoneEP Impurity B Or Z-Oxime ;(3-[2-[4-[(Z)-(2,4-Difluorophenyl)(hydroxyimino)methyl]piperidin-1- yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) 132961-05-8 |  is useful as reference Impurity standard.
    RisperidoneEP Impurity B Or Z-Oxime ;(3-[2-[4-[(Z)-(2,4-Difluorophenyl)(hydroxyimino)methyl]piperidin-1- yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one) 132961-05-8 |