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