Capecitabine EP Impurity G CAS 162204-20-8
| CAS No. | 162204-20-8 |
| Molecular Formula | C19H26FN3O8 |
| Molecular Weight | 443.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Capecitabine EP Impurity G (C19H26FN3O8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 443.42 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.
CATO supplies Capecitabine EP Impurity G (CAS 162204-20-8), a pharmacopoeial impurity reference standard (molecular formula C19H26FN3O8, MW 443.42 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Capecitabine EP Impurity G 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 | C19H26FN3O8 |
| Molecular Weight | 443.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Capecitabine Standards
- Capecitabine Impurity 13 (CAS CATO-C4X-102413)
- Capecitabine Impurity 45 (CAS 162204-22-0)
- Capecitabine Impurity 46 (CAS 1341231-51-3)
- Capecitabine Impurity 39 (CAS CATO-C4X-102439)
- Capecitabine Impurity 22 (CAS CATO-C4X-102422)
- Capecitabine Impurity 17 (CAS 1262133-68-5)
- Capecitabine Impurity 24 (CAS CATO-C4X-102424)
- Capecitabine Impurity 8 (CAS 1262133-66-3)
Recommended Standards
- Linezolid Impurity 73 (CAS CATO-C4X-107373)
- Sulfo-NHS-Biotin (sodium) (CAS 194041-65-1)
- Clindamycin Impurity 134 (CAS CATO-C4X-1341134)
- 2,3-Dimethoxy-11-(4-(trifluoromethyl)phenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one (CAS 685108-22-9)
- Upadacitinib Impurity 95 (CAS CATO-C4X-240595)
- Meropenem Impurity 14 (CAS CATO-C4X-130914)
- Propofol Impurity 18 (CAS CATO-C4X-147318)
- Fluvoxamine (CAS 54739-18-3)
- n-(Pyridin-4-yl)benzenesulfonamide (CAS 15309-85-0)
- 2-Chloro-4-methyl-5-nitropyrimidine (CAS 97821-70-0)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-5-nitropyridine (CAS 76211-92-2)
- Haloperidol Decanoate EP Impurity F (CAS CATO-C4X-146136)
- 3-Chlorodibenzo[b,d]furan (CAS 25074-67-3)
- D-Ala21-Tirzepatide (CAS CATO-CPTD788913)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com