Warfarin Impurity 11 CAS CATO-C4X-178111
| CAS No. | CATO-C4X-178111 |
| Molecular Formula | C13H16O2 |
| Molecular Weight | 204.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Warfarin Impurity 11 (C13H16O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Warfarin Impurity 11 (CAS CATO-C4X-178111, C13H16O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Warfarin Impurity 11 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H16O2 |
| Molecular Weight | 204.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Warfarin Standards
- Warfarin impurity 12 (CAS CATO-C4X-17812)
- Warfarin EP Impurity B (CAS 1076-38-6)
- Warfarin EP Impurity C (CAS 1896-62-4)
- Warfarin sodium EP Impurity A (CAS 15156-56-6)
- Warfarin impurity 18 (CAS CATO-C4X-17818)
- Warfarin Impurity N1 (CAS 2514748-07-1)
- Warfarin Impurity N2 (CAS 15151-14-1)
- Warfarin Impurity 7 (CAS 67588-18-5)
Recommended Standards
- Thioctic acid Impurity 34 (CAS CATO-C4X-152634)
- Butylphthalide Impurity 11 (CAS 111943-62-5)
- Glycopyrronium Bromide EP Impurity K (CAS 3900-93-4)
- Dyclonine Impurity 19 (CAS CATO-C4X-188119)
- Ponatinib Impurity 43 (E-Isomer) (CAS CATO-C4X-226943)
- Ticagrelor Impurity 143 (CAS 274693-53-7)
- Naproxen Impurity 51 (CAS CATO-C4X-170851)
- 2-Chloro-5-iodothiazolo[5,4-b]pyridine (CAS 1355241-54-1)
- tert-butyl N-{[3-(3,4-dimethylphenyl)-4,5-dihydro-1,2-oxazol-5-yl]methyl}carbamate (CAS 1803612-22-7)
- 1-(Difluoromethyl)-2-methyl-1h-1,3-benzodiazole (CAS 84941-16-2)
- 1-Chloro-3-(isocyano(tosyl)methyl)benzene (CAS 321345-35-1)
- 1,1'-(Hexane-1,6-diyl)bis(3-benzylurea) (CAS 39072-70-3)
- (2-((4-Fluorobenzyl)oxy)-5-methylphenyl)boronic acid (CAS 1256358-49-2)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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