Flomoxef Impurity 66 CAS CATO-C4X-138266
| CAS No. | CATO-C4X-138266 |
| Molecular Formula | C22H27F4N7O12S3 |
| Molecular Weight | 753.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Flomoxef Impurity 66 (C22H27F4N7O12S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 753.68 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Flomoxef Impurity 66 (CAS CATO-C4X-138266, C22H27F4N7O12S3) 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.
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 | C22H27F4N7O12S3 |
| Molecular Weight | 753.68 g/mol |
| Purity | ≥90% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Flomoxef Standards
- Flomoxef Impurity 55 (CAS CATO-C4X-138255)
- Flomoxef Impurity 44 (CAS CATO-C4X-138244)
- Flomoxef Impurity 46 (CAS CATO-C4X-138246)
- Flomoxef Impurity 17 (CAS 949587-46-6)
- Flomoxef Impurity 33 (CAS CATO-C4X-138233)
- Flomoxef Impurity 60 (CAS CATO-C4X-138260)
- Flomoxef Impurity 64 (CAS 2095482-92-9)
- Flomoxef Impurity 2 (CAS 1208982-59-5)
Recommended Standards
- Rifaximin EP Impurity F (CAS 14487-05-9)
- 3,3',3'',4,4',4''-Hexahexyl-2,2':5',2''-terthiophene (CAS CATO-CIM-105981)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
- Ceftazidime impurity 117 (CAS CATO-C4X-1212117)
- Oxybutynin Impurity 4 (CAS 4335-77-7)
- Azelastine Impurity 67 (CAS CATO-C4X-139667)
- Balsalazide Impurity 7 (CAS CATO-C4X-15547)
- Flumazenil Impurity 11 (CAS 1248271-71-7 (free acid))
- 2-Methyl-5-nitropyrimidine-4,6(1H,5H)-dione (CAS 680881-02-1)
- (4-Chloro-2,5-dimethoxyphenyl)methanol (CAS 1394837-77-4)
- 2,3-Dihydroxypropane-1-sulfonic Acid (CAS 10296-76-1)
- 4-(1,2,2,2-Tetrafluoro-1-trifluoromethyl-ethyl)-benzene-1,3-diamine (CAS 58524-63-3)
- 2-Methyl-6-(1h-1,2,4-triazol-1-yl)pyridin-3-amine (CAS 1001067-59-9)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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