Capecitabine Impurity 56 CAS CATO-C4X-102456
| CAS No. | CATO-C4X-102456 |
| Molecular Formula | C13H16FN3O6 |
| Molecular Weight | 329.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Capecitabine Impurity 56 (CAS CATO-C4X-102456, C13H16FN3O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Capecitabine Impurity 56 (C13H16FN3O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 329.28 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H16FN3O6 |
| Molecular Weight | 329.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Capecitabine Standards
- Capecitabine Impurity 10 (CAS 2230479-30-6)
- Capecitabine EP Impurity C (CAS 161599-46-8)
- Capecitabine Impurity 42 (CAS CATO-C4X-102442)
- Capecitabine Impurity 40 (CAS 5636-04-4)
- Capecitabine Impurity 37 (CAS CATO-C4X-102437)
- Capecitabine Impurity 47 (CAS CATO-C4X-102447)
- Capecitabine Impurity 48 (CAS CATO-C4X-102448)
- Capecitabine Impurity 27 (CAS 13007-50-6)
Recommended Standards
- Trifarotene impurity 27 (CAS CATO-C4X-313227)
- Methyl 3-((dinitrilomethyl)diazenyl)-5-nitrobenzo[b]thiophene-2-carboxylate (CAS 1025634-76-7)
- 4-Fluoro-3-[(6-methoxyimidazo[1,2-a]pyridine-3-carbonyl)amino]benzoic acid (CAS 2088942-45-2)
- 1-[3-(Benzenesulfonyl)-5-(trifluoromethyl)pyridin-2-yl]ethan-1-one (CAS 1400872-31-2)
- Candesartan Cilexetil EP Impurity A (CAS 139481-58-6)
- Melatonin Impurity 31 (CAS CATO-C4X-229231)
- Piribedil Impurity N1 (CAS 75875-58-0)
- tert-Butyl 2-(1,4-dimethyl-6-nitro-9H-carbazol-9-yl)acetate (CAS 861211-35-0)
- 4-(4-Methoxybenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326811-23-7)
- 5-Bromo-3-hydroxy-4-iodoisobenzofuran-1(3H)-one (CAS 2767590-30-5)
- Methyl 5-bromo-2-methyl-6-morpholinonicotinate (CAS 1443291-83-5)
- (4-Methyl-6,7-dihydro-4H-thieno[3,2-c]pyran-4-yl)methanamine hydrochloride (CAS 1310421-49-8)
- 5-(2-Phenyl-1,3-thiazol-4-yl)-1,3,4-oxadiazol-2-ylhydrosulfide (CAS 338760-49-9)
- Semaglutide impurity 56 (CAS CATO-C4X-222656)
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