Dorzolamide Impurity 13 CAS 897657-78-2
| CAS No. | 897657-78-2 |
| Molecular Formula | C10H15NO5S3 |
| Molecular Weight | 325.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H15NO5S3, Dorzolamide Impurity 13 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Dorzolamide Impurity 13 (CAS 897657-78-2) is a certified pharmaceutical impurity reference standard with the molecular formula C10H15NO5S3 and a molecular weight of 325.42 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Dorzolamide Impurity 13 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 | C10H15NO5S3 |
| Molecular Weight | 325.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 3 |
Related Dorzolamide Standards
- Dorzolamide (CAS 120279-96-1)
- Rac-Dorzolamide (CAS 120280-13-9)
- Dorzolamide (CAS 139066-77-6)
- Dorzolamide EP Impurity B（R,S-Isomer) (CAS 149249-72-9)
- Dorzolamide EP Impurity A (CAS 120279-95-0)
- Dorzolamide Impurity 3 (CAS CATO-C4X-12283)
- Dorzolamide-d5 (CAS 1227097-70-2)
- Dorzolamide Impurity 22 (CAS 147128-79-8)
Recommended Standards
- Spegatrine (CAS 47326-53-4)
- Duloxetine Impurity 43 (CAS CATO-C4X-133643)
- N-Cyclopropyl-3-((2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)propane-1-sulfonamide (CAS 946237-49-6)
- Ketotifen Impurity 35 (CAS CATO-C4X-204635)
- Venetoclax Impurity 100 (CAS CATO-C4X-2495100)
- Atrasentan Impurity 74 (CAS 1058540-33-2)
- Sildenafil Impurity 33 (CAS CATO-C4X-112833)
- 5-Fluoro-4-methyl-2-nitrobenzaldehyde (CAS 1806492-62-5)
- Sodium Cromoglicate Impurity 21 (CAS CATO-C4X-201121)
- (2Z)-3-(Diethylamino)-2-fluoroprop-2-enal (CAS 139680-79-8)
- 2DPP-2CNTVT (CAS 2130979-39-2)
- 4-(Difluoromethyl)-2-iodo-5-methylnicotinaldehyde (CAS 1805509-47-0)
- 2-(4-Methylbenzamido)-N-(3-methylisoxazol-5-yl)benzamide (CAS 90059-36-2)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
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