Topiramate Impurity 33 CAS CATO-C4X-176833
| CAS No. | CATO-C4X-176833 |
| Molecular Formula | C9H19N3O12S3 |
| Molecular Weight | 457.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Topiramate Impurity 33 (CAS CATO-C4X-176833), a pharmacopoeial impurity reference standard (molecular formula C9H19N3O12S3, MW 457.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Topiramate Impurity 33 (C9H19N3O12S3) contains a carbohydrate-derived structure, an amide group, a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 457.46 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Topiramate Impurity 33 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H19N3O12S3 |
| Molecular Weight | 457.46 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 3 |
Related Topiramate Standards
- Topiramate EP Impurity B (CAS 876403-98-4)
- Topiramate Impurity 29 (CAS 53209-14-6)
- Topiramate Impurity 31 (CAS CATO-C4X-176831)
- Topiramate Impurity 11 (CAS CATO-C4X-176811)
- Topiramate Impurity 22 (CAS CATO-C4X-176822)
- Topiramate Impurity 32 (CAS CATO-C4X-176832)
- Topiramate Impurity 41 (CAS CATO-C4X-176841)
- Topiramate Impurity 28 (CAS 53209-16-8)
Recommended Standards
- Methotrexate-d3 (CAS 432545-63-6)
- Benzyl 2-Acetamido-2,6-dideoxy-3-O-β-D-galactopyranosyl α-D-Galactopyranoside (CAS 141020-28-2)
- Trelagliptin impurity 90 (CAS CATO-C4X-104690)
- 2-(((4aR,6S,7R,8R,8aS)-7-Acetamido-6-(benzyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-8-yl)oxy)acetic acid (CAS 14595-22-3)
- Bupropion Impurity 43 (CAS CATO-C4X-120343)
- Polaprezinc Impurity 14 DiHCl (CAS CATO-C4X-182114)
- Cilastatin E-isomer Impurity 18 (CAS CATO-C4X-196018)
- N-(2,5-Dichlorobenzyl)pyrrolidin-3-amine hydrochloride (CAS 1289385-95-0)
- 5-(3-Chlorophenyl)-2-(4-chlorophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 302914-18-7)
- Methyl 3-(2-methyl-1h-imidazol-1-yl)-2-(propylamino)propanoate (CAS 1249839-92-6)
- (3-(Aminomethyl)phenyl)methanesulfonamide (CAS 1178363-39-7)
- 2-Fluoro-N-methyl-1H-purin-6-amine (CAS 630103-42-3)
- 5-Bromobenzo[b]furan-2-carbonyl chloride (CAS 62878-96-0)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com