topiramate and its Impurities

Topiramate is used to manage seizures and prevent migraines. It is available as a generic medication. It is sold under the brand name Topamax.Reference standards of Topiramate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 29 results for topiramate Impurities
PA 20 41000

Topiramate

Topiramate

  • Catalogue No.:PA 20 41000

  • CAS :

    97240-79-4

  • Molecular Formula : C12H21NO8S

  • Molecular Weight : 339.36

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PA 20 41010

Topiramate - Impurity A

2,3:4,5-Di-O-isopropylidene-β-D-fructopyranose

  • Catalogue No.:PA 20 41010

  • CAS :

    20880-92-6

  • Molecular Formula : C12H20O6

  • Molecular Weight : 260.28

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PA 20 41020

Topiramate - Impurity B

1-O-[(Diethylcarbamoyl)sulfamoyl]-2,3:4,5-bis-O-(1-methylethylidene)-β-D-fructopyranose

  • Catalogue No.:PA 20 41020

  • CAS :

    876403-98-4

  • Molecular Formula : C17H30N2O9S

  • Molecular Weight : 438.49

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PA 20 41030

Topiramate - Impurity C

2,3-O-(1-Methylethylidene)-1-O-sulfamoyl-β-D-fructopyranose

  • Catalogue No.:PA 20 41030

  • CAS :

    106881-41-8

  • Molecular Formula : C9H17NO8S

  • Molecular Weight : 299.30

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PA 20 41040

Topiramate - Impurity D

2,3:4,5-Bis-O-(1-methylethylidene)-1-O-[[[2,3:4,5-bis-O-(1-methylethylidene)-β-D-fructopyranose

  • Catalogue No.:PA 20 41040

  • CAS :

    950603-46-0

  • Molecular Formula : C25H39NO15S

  • Molecular Weight : 625.64

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PA 20 41050

Topiramate - Impurity E

Fructose

  • Catalogue No.:PA 20 41050

  • CAS :

    6347-01-9

  • Molecular Formula : C6H12O6

  • Molecular Weight : 180.16

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PA 20 41510

(3aR,5aR,8aR,8bS)-3a-(Chloromethyl)-2,2,7,7-tetramethyltetrahydro-5H-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran

(3aR,5aR,8aR,8bS)-3a-(Chloromethyl)-2,2,7,7-tetramethyltetrahydro-5H-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran

  • Catalogue No.:PA 20 41510

  • CAS :

    32785-90-3

  • Molecular Formula : C12H19ClO5

  • Molecular Weight : 278.73

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PA 20 41520

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl Dimethylsulfamate;

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl Dimethylsulfamate;

  • Catalogue No.:PA 20 41520

  • CAS :

    106881-33-8

  • Molecular Formula : C14H25NO8S

  • Molecular Weight : 367.42

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PA 20 41530

N-Methyl Topiramate

N-Methyl Topiramate

  • Catalogue No.:PA 20 41530

  • CAS :

    97240-80-7

  • Molecular Formula : C13H23NO8S

  • Molecular Weight : 353.39

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PA 20 41540

Topiramate Azidosulfate

Topiramate Azidosulfate

  • Catalogue No.:PA 20 41540

  • CAS :

    106881-35-0

  • Molecular Formula : C12H19N3O8S

  • Molecular Weight : 365.36

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PA 20 41550

Topiramate Didesacetal Impurity

Topiramate Didesacetal Impurity

  • Catalogue No.:PA 20 41550

  • CAS :

    106881-42-9

  • Molecular Formula : C6H13NO8S

  • Molecular Weight : 259.23

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PA 20 41560

2,3:4,5-bis-O-(1-Methylethylidene)-1-chlorosulfate-β-D-Fructopyranose

2,3:4,5-bis-O-(1-Methylethylidene)-1-chlorosulfate-β-D-Fructopyranose

  • Catalogue No.:PA 20 41560

  • CAS :

    150609-95-3

  • Molecular Formula : C12H19ClO8S

  • Molecular Weight : 358.79

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PA 20 41570

2,3-Desisopropylidene Topiramate

2,3-Desisopropylidene Topiramate

  • Catalogue No.:PA 20 41570

  • CAS :

    851957-35-2

  • Molecular Formula : C9H17NO8S

  • Molecular Weight : 299.3

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PA STI 083880

Topiramate-d12

Topiramate-d12

  • Catalogue No.:PA STI 083880

  • CAS :

    1279037-95-4

  • Molecular Formula : C12H9D12NO8S

  • Molecular Weight : 351.44

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PA IPIPRS 11 11

Topiramate (IPRS/11/11)-from IPC

  • Catalogue No.:PA IPIPRS 11 11

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

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PA USP1672206

Topiramate (1672206)

  • Catalogue No.:PA USP1672206

  • CAS :

    97240-79-4

  • Molecular Formula :

  • Molecular Weight : NA

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PA USP1672210

Topiramate Related Compound A (2,3:4,5-Bis-O-(1-methylethylidene)-beta-D-fructopyranose) (1672210)

  • Catalogue No.:PA USP1672210

  • CAS :

    20880-92-6

  • Molecular Formula :

  • Molecular Weight : NA

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PA 20 41580

((3aR,6S,7S,7aR)-6,7-Dihydroxy-2,2-dimethyltetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-3a-yl)methyl Sulfamate

((3aR,6S,7S,7aR)-6,7-Dihydroxy-2,2-dimethyltetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-3a-yl)methyl Sulfamate

  • Catalogue No.:PA 20 41580

  • CAS :

    152192-21-7

  • Molecular Formula : C9H17NO8S

  • Molecular Weight : 299.29

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PA 20 41590

((3aR,5aS,8aS,8bR)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl ((((3aR,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methoxy)carbonyl)sulfamate

((3aR,5aS,8aS,8bR)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl ((((3aR,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methoxy)carbonyl)sulfamate

  • Catalogue No.:PA 20 41590

  • CAS :

    NA

  • Molecular Formula : C27H43NO13S

  • Molecular Weight : 621.7

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PA 20 41600

((3aR,5aS,8aS,8bR)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl (diethylcarbamoyl)sulfamate

((3aR,5aS,8aS,8bR)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl (diethylcarbamoyl)sulfamate

  • Catalogue No.:PA 20 41600

  • CAS :

    NA

  • Molecular Formula : C17H30N2O9S

  • Molecular Weight : 438.49

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PA 20 41610

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl (((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl)sulfamate

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl (((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl)sulfamate

  • Catalogue No.:PA 20 41610

  • CAS :

    NA

  • Molecular Formula : C24H39NO13S

  • Molecular Weight : 581.63

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PA 20 0411000

(3aS,6R,7R,7aS)-3a-(Hydroxymethyl)-2,2-dimethyltetrahydro-5H-[1,3]dioxolo[4,5-b]pyran-6,7-diol

(3aS,6R,7R,7aS)-3a-(Hydroxymethyl)-2,2-dimethyltetrahydro-5H-[1,3]dioxolo[4,5-b]pyran-6,7-diol

  • Catalogue No.:PA 20 0411000

  • CAS :

    58238-46-3

  • Molecular Formula : C9H16O6

  • Molecular Weight : 220.22

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PA 20 0411001

4,5-O-(1-Methylethylidene)-β-D-fructopyranose

4,5-O-(1-Methylethylidene)-β-D-fructopyranose

  • Catalogue No.:PA 20 0411001

  • CAS :

    912456-61-2

  • Molecular Formula : C9H16O6

  • Molecular Weight : 220.22

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PA STI 088798

Topiramate 13C6 

Topiramate 13C6

  • Catalogue No.:PA STI 088798

  • CAS :

    1217455-55-4

  • Molecular Formula : C613C6H21NO8S

  • Molecular Weight : 345.31

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PA 20 0411002

((3aS,5aS,8aR,8bS)-2,2,7,7-Tetramethylhexahydrocyclopenta[d][1,3]dioxolo[4,5-b]pyran-3a(5H)-yl)methyl ((((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methoxy)carbonyl)sulfamate

((3aS,5aS,8aR,8bS)-2,2,7,7-Tetramethylhexahydrocyclopenta[d][1,3]dioxolo[4,5-b]pyran-3a(5H)-yl)methyl ((((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methoxy)carbonyl)sulfamate

  • Catalogue No.:PA 20 0411002

  • CAS :

    NA

  • Molecular Formula : C27H43NO13S

  • Molecular Weight : 621.7

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PA IPRS 32 18

Topiramate (IPRS/32/18) - from IPC

Topiramate (IPRS/32/18) - from IPC

  • Catalogue No.:PA IPRS 32 18

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA 20 0411003

N-Ethyl Topiramate

N-Ethyl Topiramate

  • Catalogue No.:PA 20 0411003

  • CAS :

    205248-77-7

  • Molecular Formula : C14H25NO8S

  • Molecular Weight : 367.41

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PA 20 0411004

((3aR,5aS,8aS,8bS)-5-Chloro-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl sulfamate

((3aR,5aS,8aS,8bS)-5-Chloro-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl sulfamate

  • Catalogue No.:PA 20 0411004

  • CAS :

    NA

  • Molecular Formula : C12H20ClNO8S

  • Molecular Weight : 373.8

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PA 20 0411005

(R)-Chloro((3aR,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl sulfamate

(R)-Chloro((3aR,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl sulfamate

  • Catalogue No.:PA 20 0411005

  • CAS :

    NA

  • Molecular Formula : C12H20ClNO8S

  • Molecular Weight : 373.8

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CPHI INDIA- 28, 30 November