Topiramate Impurity 85
- CAS205249-06-5
- CatalogueRS-T042023
- FormulaC9H17NO6S
- MW267.3
On this page
Product identification
| Product name | Topiramate Impurity 85 |
|---|---|
| Catalogue No. | RS-T042023 |
| CAS No. | 205249-06-5 |
| Molecular formula | C9H17NO6S |
| Molecular weight | 267.3 |
| Availability | Custom synthesis— made to order, typically 3–4 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Topiramate |
| Storage | Refer to the certificate of analysis (COA) supplied with each lot |
| Intended use | For laboratory and research use only. Not for human or veterinary use. |
What is stated on the certificate
Content and purity are assigned per lot and stated on the certificate of analysis issued for the batch you receive — they are not a catalogue-level figure. The certificate records the tests performed, the specification applied and the result obtained for that lot.
| Field | Basis |
|---|---|
| Identity | Spectroscopic and chromatographic methods appropriate to the material |
| Purity | Chromatographic purity, area normalisation unless stated otherwise |
| Assay / content | Mass balance, corrected for the stated volatiles and residue |
| Catalogue and batch numbers | RS-T042023 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
What documentation is supplied with this lot?
Is the assigned value given on an “as is” basis?
How should this material be stored?
Do you supply pack sizes other than those listed?
Finding this standard
Buyers reach this compound by CAS number, by catalogue number, through the drug substance it belongs to, or through the type of standard it is. Those routes all start here:
- Other impurities of Topiramate
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-T042023
- Request a quotation for RS-T042023
Searching another way? Send the structure, a SMILES string or the pharmacopoeial name — a CAS number is not required for a non-compendial impurity. Write to sales@rssechem.com.
Other standards of Topiramate
All 49 further standards are listed here — every link is in the page, not loaded later.
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Topiramate
IN STOCKRS-U087431 -
Topiramate EP Impurity A (Topiramate USP Related Compound A)
IN STOCKRS-T042009 -
Topiramate EP Impurity C
IN STOCKRS-T042001 -
Topiramate EP Impurity D
IN STOCKRS-T042016 -
Topiramate Impurity D
IN STOCKRS-T042010 -
((3aR,6S,7S,7aR)-6,7-Dihydroxy-2,2-dimethyltetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-3a-yl)methyl Sulfamate
CUSTOM SYNTHESISRS-P152104 -
(1-methylethylidene)-
IN STOCKRS-Z396TEC -
1,2-O-Isopropylidene-a-D-glucofuranose
CUSTOM SYNTHESISRS-U211MRL -
1,2-O-Isopropylidene-D-glucofuranose
IN STOCKRS-U018333 -
1,2:5,6-Di-O-isopropylidene-α-D-gulofuranose
CUSTOM SYNTHESISRS-U004849 -
2'-deoxy cyclic AMP
BACK ORDERRS-U069397 -
2,3-O-isopropylidene-beta-D-fructofuranose
IN STOCKRS-I058053 -
2,4,6-Trichloro Methyl Ester Benzoic Aci
BACK ORDERRS-U083890 -
D(-)-Fructose
IN STOCKRS-P006120 -
Diacetone-D-Glucose
IN STOCKRS-U211NBM -
Sulfate in water
IN STOCKRS-Z399NVF -
Topiramate 13C6
IN STOCKRS-T042020 -
Topiramate Azidosulfate
IN STOCKRS-T042005 -
Topiramate Lithium
IN STOCKRS-T042033 -
Topiramate N-Methyl Impurity
CUSTOM SYNTHESISRS-T042017 -
Topiramate-[D12]
IN STOCKRS-U087096 -
Topiramate Impurity 3
IN STOCKRS-T042008 -
Topiramate Impurity 5
IN STOCKRS-T042015 -
Topiramate Impurity 6
IN STOCKRS-T042014 -
Topiramate Impurity 7
CUSTOM SYNTHESISRS-I058016 -
Topiramate Impurity 19
IN STOCKRS-T042006 -
Topiramate Impurity 30
IN STOCKRS-T042024 -
Topiramate Impurity 34
CUSTOM SYNTHESISRS-I001425 -
Topiramate Impurity 34
IN STOCKRS-T042021 -
Topiramate Impurity 41
IN STOCKRS-T042018 -
Topiramate Impurity 49
IN STOCKRS-T042029 -
Topiramate Impurity 53
IN STOCKRS-T042032 -
Topiramate Impurity 70
IN STOCKRS-I010012 -
Topiramate Impurity 71
IN STOCKRS-T042002 -
Topiramate Impurity 72
IN STOCKRS-T042004 -
Topiramate Impurity 73
IN STOCKRS-T042012 -
Topiramate Impurity 74
IN STOCKRS-T042022 -
Topiramate Impurity 75
IN STOCKRS-T042030 -
Topiramate Impurity 79
CUSTOM SYNTHESISRS-T042031 -
Topiramate Impurity 80
IN STOCKRS-T042003 -
Topiramate Impurity 81
IN STOCKRS-T042007 -
Topiramate Impurity 82
IN STOCKRS-T042011 -
Topiramate Impurity 83
IN STOCKRS-T042013 -
Topiramate Impurity 84
IN STOCKRS-T042019 -
Topiramate Impurity 86
IN STOCKRS-T042026 -
Topiramate Impurity 87
IN STOCKRS-T042027 -
Topiramate Impurity 88
IN STOCKRS-T042028
Pharmacopoeial names (EP, USP, BP, JP) are used for identification purposes only and do not imply endorsement by those bodies. This product is supplied for laboratory and research use only — not for human or veterinary use.





![Chemical structure of ((3aR,6S,7S,7aR)-6,7-Dihydroxy-2,2-dimethyltetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-3a-yl)methyl Sulfamate](/structures/w4/CKFVNUZYZFRVCR-XZMZPDFPSA-N.webp?v=8)







![Chemical structure of 2,3:4,5-Bis-O-(1-methylethylidene)-b-D-fructopyranose 1-[[(diethylamino)carbonyl]sulfamate]](/structures/w4/ACYUMNAWFQMILA-FJZAXULXSA-N.webp?v=8)








![Chemical structure of Topiramate-[D12]](/structures/w4/KJADKKWYZYXHBB-RFYKXYJISA-N.webp?v=8)

























