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Pharmaceutical Reference Standards

Buspirone Hydrochloride

Picture of Buspirone Hydrochloride
CAT No: SZ-B023001
CAS No: 33386-08-2
Mol.F. : C21H31N5O2 : HCl
Mol.Wt. : 385.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 36505-84-7 (free base)
SZ-B023001
CAS No:33386-08-2
Mol.F.: C21H31N5O2 : HCl
Mol.Wt.: 385.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 36505-84-7 (free base)

Buspirone EP Impurity A

Picture of Buspirone EP Impurity A
CAT No: SZ-B023002
CAS No: 20980-22-7
Mol.F. : C8H12N4
Mol.Wt. : 164.2
Inv. Status: In Stock
SZ-B023002
CAS No:20980-22-7
Mol.F.: C8H12N4
Mol.Wt.: 164.2
Inv. Status: In Stock

Buspirone EP Impurity B

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CAT No: SZ-B023003
CAS No: 81461-73-6
Mol.F. : C12H19N4 : Br
Mol.Wt. : 219.3 : 79.9
Inv. Status: In Stock
Rel. CAS No : 179071-85-3 (free base)
SZ-B023003
CAS No:81461-73-6
Mol.F.: C12H19N4 : Br
Mol.Wt.: 219.3 : 79.9
Inv. Status: In Stock
Rel. CAS No : 179071-85-3 (free base)

Buspirone EP Impurity C

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CAT No: SZ-B023004
CAS No: 257877-45-5
Mol.F. : C20H30N8
Mol.Wt. : 382.5
Inv. Status: In Stock
SZ-B023004
CAS No:257877-45-5
Mol.F.: C20H30N8
Mol.Wt.: 382.5
Inv. Status: In Stock

Buspirone EP Impurity D

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CAT No: SZ-B023005
CAS No: 2724726-67-2
Mol.F. : C24H38N8O
Mol.Wt. : 454.6
Inv. Status: Limited Stock
SZ-B023005
CAS No:2724726-67-2
Mol.F.: C24H38N8O
Mol.Wt.: 454.6
Inv. Status: Limited Stock

Buspirone EP Impurity E (Na salt)

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CAT No: SZ-B023006
CAS No: NA
Mol.F. : C21H33N5O3 : Na
Mol.Wt. : 403.5 : 23.0
Inv. Status: In Stock
Rel. CAS No : 257877-43-3 (free base) ; 257877-46-6 (HCl salt)
SZ-B023006
CAS No:NA
Mol.F.: C21H33N5O3 : Na
Mol.Wt.: 403.5 : 23.0
Inv. Status: In Stock
Rel. CAS No : 257877-43-3 (free base) ; 257877-46-6 (HCl salt)

Buspirone EP Impurity F

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CAT No: SZ-B023007
CAS No: 2512210-24-9
Mol.F. : C33H51N9O3
Mol.Wt. : 621.8
Inv. Status: In Stock
SZ-B023007
CAS No:2512210-24-9
Mol.F.: C33H51N9O3
Mol.Wt.: 621.8
Inv. Status: In Stock

Buspirone EP Impurity G

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CAT No: SZ-B023008
CAS No: 84746-24-7
Mol.F. : C12H14N6
Mol.Wt. : 242.3
Inv. Status: In Stock
SZ-B023008
CAS No:84746-24-7
Mol.F.: C12H14N6
Mol.Wt.: 242.3
Inv. Status: In Stock

Buspirone EP Impurity H

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CAT No: SZ-B023009
CAS No: 2708578-34-9
Mol.F. : C33H50N8O4
Mol.Wt. : 622.8
Inv. Status: In Stock
SZ-B023009
CAS No:2708578-34-9
Mol.F.: C33H50N8O4
Mol.Wt.: 622.8
Inv. Status: In Stock

Buspirone EP Impurity I

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CAT No: SZ-B023010
CAS No: 2725354-99-2
Mol.F. : C21H30ClN5O2
Mol.Wt. : 420
Inv. Status: In Stock
SZ-B023010
CAS No:2725354-99-2
Mol.F.: C21H30ClN5O2
Mol.Wt.: 420
Inv. Status: In Stock

Buspirone EP Impurity J

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CAT No: SZ-B023011
CAS No: 2726492-72-2
Mol.F. : C34H52N6O5
Mol.Wt. : 624.8
Inv. Status: In Stock
SZ-B023011
CAS No:2726492-72-2
Mol.F.: C34H52N6O5
Mol.Wt.: 624.8
Inv. Status: In Stock

Buspirone EP Impurity K

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CAT No: SZ-B023012
CAS No: 1075-89-4
Mol.F. : C9H13NO2
Mol.Wt. : 167.2
Inv. Status: In Stock
SZ-B023012
CAS No:1075-89-4
Mol.F.: C9H13NO2
Mol.Wt.: 167.2
Inv. Status: In Stock

Buspirone EP Impurity L

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CAT No: SZ-B023013
CAS No: 21098-11-3
Mol.F. : C13H20ClNO2
Mol.Wt. : 257.8
Inv. Status: In Stock
SZ-B023013
CAS No:21098-11-3
Mol.F.: C13H20ClNO2
Mol.Wt.: 257.8
Inv. Status: In Stock

Buspirone EP Impurity M

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CAT No: SZ-B023014
CAS No: 80827-62-9
Mol.F. : C13H20BrNO2
Mol.Wt. : 302.2
Inv. Status: In Stock
SZ-B023014
CAS No:80827-62-9
Mol.F.: C13H20BrNO2 
Mol.Wt.: 302.2
Inv. Status: In Stock

Buspirone EP Impurity N

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CAT No: SZ-B023015
CAS No: 257877-44-4
Mol.F. : C22H32N2O4
Mol.Wt. : 388.5
Inv. Status: In Stock
SZ-B023015
CAS No:257877-44-4
Mol.F.: C22H32N2O4
Mol.Wt.: 388.5
Inv. Status: In Stock

Buspirone 5-Hydroxy Metabolite

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CAT No: SZ-B023016
CAS No: 105496-33-1
Mol.F. : C21H31N5O3
Mol.Wt. : 401.5
Inv. Status: Custom Synthesis
SZ-B023016
CAS No:105496-33-1
Mol.F.: C21H31N5O3
Mol.Wt.: 401.5
Inv. Status: Custom Synthesis

Buspirone 6-Hydroxy Metabolite

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CAT No: SZ-B023017
CAS No: 125481-61-0
Mol.F. : C21H31N5O3
Mol.Wt. : 401.5
Inv. Status: In Stock
SZ-B023017
CAS No:125481-61-0
Mol.F.: C21H31N5O3
Mol.Wt.: 401.5
Inv. Status: In Stock

Buspirone N-Oxide

Picture of Buspirone N-Oxide
CAT No: SZ-B023018
CAS No: 220747-81-9
Mol.F. : C21H31N5O3
Mol.Wt. : 401.5
Inv. Status: In Stock
SZ-B023018
CAS No:220747-81-9
Mol.F.: C21H31N5O3
Mol.Wt.: 401.5
Inv. Status: In Stock

Buspirone EP Impurity E

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CAT No: SZ-B023019
CAS No: 257877-43-3
Mol.F. : C21H33N5O3
Mol.Wt. : 403.5
Inv. Status: In Stock
Rel. CAS No : 257877-46-6 (HCl salt)
SZ-B023019
CAS No:257877-43-3
Mol.F.: C21H33N5O3
Mol.Wt.: 403.5
Inv. Status: In Stock
Rel. CAS No : 257877-46-6 (HCl salt)

Buspirone Impurity 2

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CAT No: SZ-B023022
CAS No: 2329290-63-1
Mol.F. : C12H13ClN6
Mol.Wt. : 276.7
Inv. Status: Custom Synthesis
SZ-B023022
CAS No:2329290-63-1
Mol.F.: C12H13ClN6
Mol.Wt.: 276.7
Inv. Status: Custom Synthesis

Buspirone Impurity 3

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CAT No: SZ-B023023
CAS No: 42940-56-7
Mol.F. : C11H11N3O2
Mol.Wt. : 217.2
Inv. Status: Custom Synthesis
SZ-B023023
CAS No:42940-56-7
Mol.F.: C11H11N3O2
Mol.Wt.: 217.2
Inv. Status: Custom Synthesis

Buspirone

Picture of Buspirone
CAT No: SZ-B023024
CAS No: 36505-84-7
Mol.F. : C21H31N5O2
Mol.Wt. : 385.5
Inv. Status: Custom Synthesis
Rel. CAS No : 33386-08-2 (HCl salt)
SZ-B023024
CAS No:36505-84-7
Mol.F.: C21H31N5O2
Mol.Wt.: 385.5
Inv. Status: Custom Synthesis
Rel. CAS No : 33386-08-2 (HCl salt)

Stable Isotopes And Metabolites

Buspirone D8 Hydrochloride

Picture of Buspirone D8 Hydrochloride
CAT No: SZ-B023D01
CAS No: 1216761-39-5
Mol.F. : C21H23D8N5O2 : HCl
Mol.Wt. : 393.6 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 204395-49-3 (free base)
SZ-B023D01
CAS No:1216761-39-5
Mol.F.: C21H23D8N5O2 : HCl
Mol.Wt.: 393.6 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 204395-49-3 (free base)

6-Hydroxy Buspirone D8

Picture of 6-Hydroxy Buspirone D8
CAT No: SZ-B023D02
CAS No: 1189644-16-3
Mol.F. : C21H23D8N5O3
Mol.Wt. : 409.6
Inv. Status: Custom Synthesis
SZ-B023D02
CAS No:1189644-16-3
Mol.F.: C21H23D8N5O3
Mol.Wt.: 409.6
Inv. Status: Custom Synthesis

Possible Nitroso Standards

Buspirone Nitroso Impurity 1

Picture of Buspirone Nitroso Impurity 1
CAT No: SZ-B023020
CAS No: 872826-80-7
Mol.F. : C8H11N5O
Mol.Wt. : 193.2
Inv. Status: Custom Synthesis
SZ-B023020
CAS No:872826-80-7
Mol.F.: C8H11N5O
Mol.Wt.: 193.2
Inv. Status: Custom Synthesis

1,4-Dinitrosopiperazine

Picture of 1,4-Dinitrosopiperazine
CAT No: SZ-B023021
CAS No: 140-79-4
Mol.F. : C4H8N4O2
Mol.Wt. : 144.1
Inv. Status: In Stock
SZ-B023021
CAS No:140-79-4
Mol.F.: C4H8N4O2
Mol.Wt.: 144.1
Inv. Status: In Stock