Buspirone

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Buspirone 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 : Buspirone EP Impurity N/257877-44-4

    Code: JCBUS-21
    CAS: 257877-44-4
    Chemical Formula:C22H32N2O4
    Molecular Weight:388.5
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:   Buspirone EP Impurity N/257877-44-4 is useful as reference Impurity standard.
    Buspirone EP Impurity N/257877-44-4
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    Product Name : 2,5-dichloropyrimidine;2-Chloro-5-chloropyrimidine|22536-67-0

    Code: JCBUS-20
    CAS: 22536-67-0
    Chemical Formula:C4H2Cl2N2
    Molecular Weight:148.98
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:   2,5-dichloropyrimidine;2-Chloro-5-chloropyrimidine|22536-67-0is useful as reference Impurity standard.
    2,5-dichloropyrimidine;2-Chloro-5-chloropyrimidine|22536-67-0
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    Product Name : 3,3-tetramethylene glutaricanhydride ;1,1-Cyclopentanediacetic anhydride, 8-Oxaspiro[4.5]decane-7,9-dione |5662-95-3

    Code: JCBUS-19
    CAS: 5662-95-3
    Chemical Formula: C9H12O3
    Molecular Weight: 168.19
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: 3,3-tetramethylene glutaricanhydride ;1,1-Cyclopentanediacetic anhydride, 8-Oxaspiro[4.5]decane-7,9-dione |5662-95-3  is useful as reference Impurity standard.
    3,3-tetramethylene glutaricanhydride ;1,1-Cyclopentanediacetic anhydride, 8-Oxaspiro[4.5]decane-7,9-dione |5662-95-3
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    Product Name : Methyl cyanoacetate ;Methyl 2-cyanoacetate,|105-34-0

    Code: JCBUS-18
    CAS: 105-34-0
    Chemical Formula: C4H5NO2
    Molecular Weight: 99.09
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Methyl cyanoacetate ;Methyl 2-cyanoacetate,|105-34-0  is useful as reference Impurity standard.
    Methyl cyanoacetate ;Methyl 2-cyanoacetate,|105-34-0
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    Product Name : Buspirone N-Oxide (Oxalate) ; 8-[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]-decane-7,9-dione N-oxide oxalate | 220747-81-9

    Code: JCBUS-17
    CAS: 220747-81-9
    Chemical Formula: C23H33N5O7
    Molecular Weight: 491.54
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone N-Oxide (Oxalate) ; 8-[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]-decane-7,9-dione N-oxide oxalate | 220747-81-9 is useful as reference Impurity standard.
    Buspirone N-Oxide (Oxalate) ; 8-[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]-decane-7,9-dione N-oxide oxalate | 220747-81-9
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    Product Name : Buspirone HCl ;Buspirone Hydrochloride ; 8-[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]-decane-7,9-dione hydrochloride | 33386-08-2

    Code: JCBUS-16
    CAS: 33386-08-2
    Chemical Formula: C21H32ClN5O2
    Molecular Weight: 421.96
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:HCl ;Buspirone Hydrochloride ; 8-[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]-decane-7,9-dione hydrochloride | 33386-08-2 is useful as reference Impurity standard.
    Buspirone HCl ;Buspirone Hydrochloride ; 8-[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]-decane-7,9-dione hydrochloride | 33386-08-2
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    Product Name : Buspirone EP Impurity M ; 8-(4-Bromobutyl)-8-azaspiro[4.5]decane-7,9-dione | 80827-62-9

    Code: JCBUS-15
    CAS: 80827-62-9
    Chemical Formula: C13H20BrNO2
    Molecular Weight: 302.21
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity M ; 8-(4-Bromobutyl)-8-azaspiro[4.5]decane-7,9-dione 80827-62-9 is useful as reference Impurity standard.
    Buspirone EP Impurity M ; 8-(4-Bromobutyl)-8-azaspiro[4.5]decane-7,9-dione | 80827-62-9
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    Product Name : Buspirone EP Impurity L ; 8-(4-Chlorobutyl)-8-azaspiro[4.5]decane-7,9-dione | 21098-11-3

    Code: JCBUS-14
    CAS: 21098-11-3
    Chemical Formula: C13H20ClNO2
    Molecular Weight: 257.76
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone EP Impurity L ; 8-(4-Chlorobutyl)-8-azaspiro[4.5]decane-7,9-dione | 21098-11-3 is useful as reference Impurity standard.
    Buspirone EP Impurity L ; 8-(4-Chlorobutyl)-8-azaspiro[4.5]decane-7,9-dione | 21098-11-3
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    Product Name : Buspirone EP Impurity K ;Buspirone USP RC K ; 8-Azaspiro[4.5]decane-7,9-dione | 1075-89-4

    Code: JCBUS-13
    CAS: 1075-89-4
    Chemical Formula: C9H13NO2
    Molecular Weight: 167.21
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity K ;Buspirone USP RC K ; 8-Azaspiro[4.5]decane-7,9-dione | 1075-89-4is useful as reference Impurity standard.
    Buspirone EP Impurity K ;Buspirone USP RC K ; 8-Azaspiro[4.5]decane-7,9-dione | 1075-89-4
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    Product Name : Buspirone EP Impurity J ; 4-(7,9-Dioxo-8-azaspiro[4.5]dec-8-yl)butyl [1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl]-cyclopentyl]acetate

    Code: JCBUS-12
    CAS: 
    Chemical Formula: C34H52N6O5
    Molecular Weight: 624.81
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone EP Impurity J ; 4-(7,9-Dioxo-8-azaspiro[4.5]dec-8-yl)butyl [1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl]-cyclopentyl]acetate is useful as reference Impurity standard.
    Buspirone EP Impurity J ; 4-(7,9-Dioxo-8-azaspiro[4.5]dec-8-yl)butyl [1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl]-cyclopentyl]acetate
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    Product Name : Buspirone EP Impurity I ; 8-[4-[4-(5-Chloropyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]decane-7,9-dione

    Code: JCBUS-11
    CAS: 
    Chemical Formula:C21H30ClN5O2
    Molecular Weight: 419.95
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity I ; 8-[4-[4-(5-Chloropyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]decane-7,9-dioneis useful as reference Impurity standard.
    Buspirone EP Impurity I ; 8-[4-[4-(5-Chloropyrimidin-2-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]decane-7,9-dione
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    Product Name : Buspirone EP Impurity H ; bis[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl](cyclopentane-1,1-diyl)diacetate

    Code: JCBUS-10
    CAS: 
    Chemical Formula: C33H50N8O4
    Molecular Weight: 622.8
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone EP Impurity H ; bis[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl](cyclopentane-1,1-diyl)diacetate is useful as reference Impurity standard.
    Buspirone EP Impurity H ; bis[4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl](cyclopentane-1,1-diyl)diacetate
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    Product Name : Buspirone EP Impurity G ;Buspirone USP RC G ; 2,2′-(Piperazine-1,4-diyl)dipyrimidine | 84746-24-7

    Code: JCBUS-09
    CAS: 84746-24-7
    Chemical Formula: C12H14N6
    Molecular Weight: 242.28
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity G ;Buspirone USP RC G ; 2,2′-(Piperazine-1,4-diyl)dipyrimidine | 84746-24-7is useful as reference Impurity standard.
    Buspirone EP Impurity G ;Buspirone USP RC G ; 2,2′-(Piperazine-1,4-diyl)dipyrimidine | 84746-24-7
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    Product Name : Buspirone EP Impurity F ; 4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl[1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl] butyl] amino] ethyl] cyclopentyl] acetate

    Code: JCBUS-08
    CAS: 
    Chemical Formula: C33H51N9O3
    Molecular Weight: 621.82
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone EP Impurity F ; 4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl[1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl] butyl] amino] ethyl] cyclopentyl] acetate is useful as reference Impurity standard.
    Buspirone EP Impurity F ; 4-[4-(Pyrimidin-2-yl)piperazin-1-yl]butyl[1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl] butyl] amino] ethyl] cyclopentyl] acetate
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    Product Name : Buspirone EP Impurity E ; [1-[2-Oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl] cyclopentyl]acetic acid | 257877-46-6

    Code: JCBUS-07
    CAS: 257877-46-6
    Chemical Formula: C24H39ClN8O
    Molecular Weight: 491.7
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone EP Impurity E ; [1-[2-Oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl] cyclopentyl]acetic acid | 257877-46-6 is useful as reference Impurity standard.
    Buspirone EP Impurity E ; [1-[2-Oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl] cyclopentyl]acetic acid | 257877-46-6
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    Product Name : Buspirone EP Impurity D ; 2,2′-[Oxybis[butane-1,4-diyl(piperazine-1,4-diyl)]]dipyrimidine HCl

    Code: JCBUS-06
    CAS: 
    Chemical Formula: C24H39ClN8O
    Molecular Weight: 491.07
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone EP Impurity D ; 2,2′-[Oxybis[butane-1,4-diyl(piperazine-1,4-diyl)]]dipyrimidine HCl is useful as reference Impurity standard.
    Buspirone EP Impurity D ; 2,2′-[Oxybis[butane-1,4-diyl(piperazine-1,4-diyl)]]dipyrimidine HCl
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    Product Name : Buspirone EP Impurity C ; 2,2′-[Butane-1,4-diylbis(piperazine-1,4-diyl)]dipyrimidine | 257877-45-5

    Code: JCBUS-05
    CAS: 257877-45-5
    Chemical Formula:  C20H30N8
    Molecular Weight: 382.51
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity C ; 2,2′-[Butane-1,4-diylbis(piperazine-1,4-diyl)]dipyrimidine | 257877-45-5is useful as reference Impurity standard.
    Buspirone EP Impurity C ; 2,2′-[Butane-1,4-diylbis(piperazine-1,4-diyl)]dipyrimidine | 257877-45-5
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    Product Name : Buspirone EP Impurity B ; 8-(Pyrimidin-2-yl)-8-aza-5-azoniaspiro[4.5]decane bromide

    Code: JCBUS-04
    CAS: NA
    Chemical Formula: C12H19BrN4
    Molecular Weight: 299.21
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity B ; 8-(Pyrimidin-2-yl)-8-aza-5-azoniaspiro[4.5]decane bromideis useful as reference Impurity standard.
    Buspirone EP Impurity B ; 8-(Pyrimidin-2-yl)-8-aza-5-azoniaspiro[4.5]decane bromide
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    Product Name : Buspirone EP Impurity A ; Buspirone USP RC A ; 2-(Piperazin-1-yl)pyrimidine | 20980-22-7

    Code: JCBUS-03
    CAS: 20980-22-7
    Chemical Formula: C8H12N4
    Molecular Weight: 164.21
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Buspirone EP Impurity A ; Buspirone USP RC A ; 2-(Piperazin-1-yl)pyrimidine | 20980-22-7is useful as reference Impurity standard.
    Buspirone EP Impurity A ; Buspirone USP RC A ; 2-(Piperazin-1-yl)pyrimidine | 20980-22-7
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    Product Name : Buspirone 6-Hydroxy Metabolite ; 6-Hydroxy-8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9- dione ; 6′-Hydroxy Buspirone | 125481-61-0

    Code: JCBUS-02
    CAS: 125481-61-0
    Chemical Formula:C21H31N5O3
    Molecular Weight: 401.50
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone 6-Hydroxy Metabolite ; 6-Hydroxy-8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9- dione ; 6'-Hydroxy Buspirone | 125481-61-0 is useful as reference Impurity standard.
    Buspirone 6-Hydroxy Metabolite ; 6-Hydroxy-8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9- dione ; 6'-Hydroxy Buspirone | 125481-61-0
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    Product Name : Buspirone 5-Hydroxy Metabolite; 8-[4-[4-(5-Hydroxy-2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione | 105496-33-1

    Code: JCBUS-01
    CAS: 105496-33-1
    Chemical Formula: C21H31N5O3
    Molecular Weight: 401.50
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Buspirone 5-Hydroxy Metabolite; 8-[4-[4-(5-Hydroxy-2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione | 105496-33-1 is useful as reference Impurity standard.
    Buspirone 5-Hydroxy Metabolite; 8-[4-[4-(5-Hydroxy-2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione | 105496-33-1
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