Flomoxef Impurity 65 CAS CATO-C4X-138265
| CAS No. | CATO-C4X-138265 |
| Molecular Formula | C15H20F2N6O7S2 |
| Molecular Weight | 498.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Flomoxef Impurity 65 (CAS CATO-C4X-138265), a pharmacopoeial impurity reference standard (molecular formula C15H20F2N6O7S2, MW 498.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Flomoxef Impurity 65 (C15H20F2N6O7S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C15H20F2N6O7S2 |
| Molecular Weight | 498.48 g/mol |
| Purity | ≥95% |
| 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 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Flomoxef Standards
- Flomoxef (CAS 99665-00-6)
- Flomoxef Impurity 40 (CAS CATO-C4X-138240)
- Flomoxef Impurity 42 (CAS CATO-C4X-138242)
- Flomoxef Impurity 14 (CAS CATO-C4X-138214)
- Flomoxef Impurity 8 (CAS CATO-C4X-13828)
- Flomoxef Impurity 56 (CAS CATO-C4X-138256)
- Flomoxef Impurity 52 (CAS CATO-C4X-138252)
- Flomoxef Impurity 29 (CAS 2095697-75-7)
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- 3-(Hexylamino)propanenitrile (CAS 55490-85-2)
- Methyl 2-(6-iodopyridin-3-yl)acetate (CAS 1033705-87-1)
- 3-Amino-2-bromo-6-picoline (CAS 126325-53-9)
- 4-Fluorotetrahydrofuran-3-ol (CAS 1781329-86-9)
- Olprinone Impurity 34 (CAS 136117-81-2)
- (Asp28)-Exenatide trifluoroacetate salt (CAS 1678417-24-7)
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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