Impurity Reference Standard - Products

Topiramate

CAT No: CL-TMAT-01 CAS No: 97240-79-4 Mol Wt: 339.4 Mol F: C12H21NO8S Inv Status: Custom Synthesis

Chemical Name: 2,3:4,5-Bis-O-(propan-2,2-diyl)-beta-D-fructopyranose

Topiramate EP Impurity A

CAT No: CL-TMAT-02 CAS No: 20880-92-6 Mol Wt: 260.3 Mol F: C12H20O6 Inv Status: Custom Synthesis

Chemical Name: 2,3:4,5-bis-O-(propan-2,2-diyl)-beta-D-fructopyranose

Topiramate N-Methyl Impurity

CAT No: CL-TMAT-03 CAS No: 97240-80-7 Mol Wt: 353.4 Mol F: C13H23NO8S Inv Status: Custom Synthesis

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

Topiramate Chlorosulfonyl Impurity

CAT No: CL-TMAT-04 CAS No: 150609-95-3 Mol Wt: 358.8 Mol F: C12H19ClO8S Inv Status: Custom Synthesis

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

Topiramate Azidosulfate Impurity

CAT No: CL-TMAT-05 CAS No: 106881-35-0 Mol Wt: 365.4 Mol F: C12H19N3O8S Inv Status: Custom Synthesis

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

Topiramate EP Impurity D

CAT No: CL-TMAT-06 CAS No: 950603-46-0 Mol Wt: 625.6 Mol F: C25H39NO15S Inv Status: Custom Synthesis

Chemical Name: 2,3:4,5-bis-O-(propan-2,2-diyl)-beta-D-fructopyeanose 1-[N-[[[2,3:4,5-bis-O-(propan-2,2-diyl)-beta-D-fructopyranosyl]oxy]carbamoyl]sulfamate]

Topiramate EP Impurity E

CAT No: CL-TMAT-07 CAS No: [6347-01-9] Mol Wt: 180.2 Mol F: C6H12O6 Inv Status: Custom Synthesis

Chemical Name: D-fructopyranose

Topiramate Di-Desisopropylidene Impurity

CAT No: CL-TMAT-08 CAS No: 106881-42-9 Mol Wt: 259.2 Mol F: C6H13NO8S Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-2,3,4,5-tetrahydroxytetrahydro-2H-pyran-2-yl)methyl sulfamate

Topiramate Impurity D

CAT No: CL-TMAT-09 CAS No: 25018-67-1 Mol Wt: 260.3 Mol F: C12H20O6 Inv Status: Custom Synthesis

Chemical Name: (3a'R,4S,7'S,7a'S)-2,2,2',2'-tetramethyltetrahydrospiro[[1,3]dioxolane-4,6'-[1,3]dioxolo[4,5-c]pyran]-7'-ol

Topiramate Impurity 1

CAT No: CL-TMAT-10 CAS No: 851957-35-2 Mol Wt: 299.3 Mol F: C9H17NO8S Inv Status: Custom Synthesis

Chemical Name: ((3aR,6R,7S,7aS)-6,7-dihydroxy-2,2-dimethyltetrahydro-4H-[1,3]dioxolo[4,5-c]pyran-6-yl)methyl sulfamate

Topiramate Impurity 2

CAT No: CL-TMAT-11 CAS No: 32785-90-3 Mol Wt: 278.7 Mol F: C12H19ClO5 Inv Status: Custom Synthesis

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

Topiramate Dimer Impurity

CAT No: CL-TMAT-13 CAS No: NA Mol Wt: 581.6 Mol F: C24H39NO13S Inv Status: Custom Synthesis

Chemical Name: ((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

Topiramate EP Impurity B

CAT No: CL-TMAT-14 CAS No: 876403-98-4 Mol Wt: 438.5 Mol F: C17H30N2O9S Inv Status: Custom Synthesis

Chemical Name: 2,3:4,5-bis-O-(propan-2,2-diyl)-beta-D-fructopyranose 1-[N-(diethylcarbamoyl)sulfamate]

Topiramate Impurity 3

CAT No: CL-TMAT-15 CAS No: 205248-77-7 Mol Wt: 367.4 Mol F: C14H25NO8S Inv Status: Custom Synthesis

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

Topiramate Impurity 5

CAT No: CL-TMAT-16 CAS No: 912456-61-2 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

Chemical Name: (3aR,6R,7S,7aS)-6-(Hydroxymethyl)-2,2-dimethyltetrahydro-4H-[1,3]dioxolo[4,5-c]pyran-6,7-diol

Topiramate Impurity 6

CAT No: CL-TMAT-17 CAS No: 58238-46-3 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

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

Topiramate Impurity 7

CAT No: CL-TMAT-18 CAS No: 66900-93-4 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

Chemical Name: (5S,8R,9R,10S)-2,2-Dimethyl-1,3,6-trioxaspiro[4.5]decane-8,9,10-triol

Topiramate Impurity 8

CAT No: CL-TMAT-19 CAS No: 83541-86-0 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

Chemical Name: (5R,8R,9R,10S)-2,2-dimethyl-1,3,6-trioxaspiro[4.5]decane-8,9,10-triol

Topiramate Impurity 9

CAT No: CL-TMAT-20 CAS No: NA Mol Wt: 424.5 Mol F: C16H28N2O9S Inv Status: Custom Synthesis

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

Topiramate Isopropyl Sulfate Impurity

CAT No: CL-TMAT-21 CAS No: NA Mol Wt: 382.4 Mol F: C15H26O9S Inv Status: Custom Synthesis

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

Topiramate Impurity 10

CAT No: CL-TMAT-22 CAS No: 14686-89-6 Mol Wt: 260.3 Mol F: C12H20O6 Inv Status: Custom Synthesis

Chemical Name: (3aR,5R,6R,6aR)-5-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-ol

Topiramate Impurity 11

CAT No: CL-TMAT-23 CAS No: 76549-76-3 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

Chemical Name: (5S,7R,8S,9S)-7-(hydroxymethyl)-2,2-dimethyl-1,3,6-trioxaspiro[4.4]nonane-8,9-diol

Topiramate Impurity 12

CAT No: CL-TMAT-24 CAS No: 18549-40-1 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

Chemical Name: (R)-1-((3aR,5R,6S,6aR)-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethane-1,2-diol

Topiramate Impurity 13

CAT No: CL-TMAT-25 CAS No: 70834-19-4 Mol Wt: 220.2 Mol F: C9H16O6 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4R,5R)-5-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)tetrahydrofuran-2,3,4-triol

Topiramate Impurity 14

CAT No: CL-TMAT-26 CAS No: 455899-78-2 Mol Wt: 340.3 Mol F: C12H20O9S Inv Status: Custom Synthesis

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

Topiramate Impurity 15

CAT No: CL-TMAT-27 CAS No: 40614-98-0 Mol Wt: 358.8 Mol F: C12H19ClO8S Inv Status: Custom Synthesis

Chemical Name: (3a'R,4S,7'R,7a'R)-2,2,2',2'-Tetramethyltetrahydrospiro[[1,3]dioxolane-4,6'-[1,3]dioxolo[4,5-c]pyran]-7'-yl sulfurochloridate

Topiramate Impurity 16

CAT No: CL-TMAT-28 CAS No: 106881-39-4 Mol Wt: 339.4 Mol F: C12H21NO8S Inv Status: Custom Synthesis

Chemical Name: (3a'R,4S,7'S,7a'R)-2,2,2',2'-Tetramethyltetrahydrospiro[[1,3]dioxolane-4,6'-[1,3]dioxolo[4,5-c]pyran]-7'-yl sulfamate

Topiramate Impurity 17

CAT No: CL-TMAT-29 CAS No: NA Mol Wt: 341.3 Mol F: C10H19N3O8S Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-2,3,4,5-Tetramethoxytetrahydro-2H-pyran-2-yl)methyl sulfurazidate

Type:Impurity Reference Standard

API NAME:Topiramate

Total Products: 28

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