Fluconazole Impurity 55 CAS CATO-C4X-101955
| CAS No. | CATO-C4X-101955 |
| Molecular Formula | C23H19F4N9O2 |
| Molecular Weight | 529.45 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 Fluconazole Impurity 55 (CAS CATO-C4X-101955), a pharmacopoeial impurity reference standard (molecular formula C23H19F4N9O2, MW 529.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H19F4N9O2, Fluconazole Impurity 55 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 529.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Fluconazole Impurity 55 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 | C23H19F4N9O2 |
| Molecular Weight | 529.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 9 |
Related Fluconazole Standards
- Fluconazole Impurity 47 (CAS CATO-C4X-101947)
- Fluconazole Impurity 75 (CAS CATO-C4X-101975)
- Fluconazole β-D-glucuronide (CAS 136134-23-1)
- Fluconazole Impurity 24 (CAS CATO-C4X-101924)
- Fluconazole Impurity 56 (CAS CATO-C4X-101956)
- Fluconazole Impurity 36 (CAS CATO-C4X-101936)
- Fluconazole Impurity 23 (CAS 1609495-95-5)
- Fluconazole EP Impurity B (CAS 871550-15-1)
Recommended Standards
- Sofosbuvir (CAS 1190307-88-0)
- (4S,5S,6S)-4-(((allyloxy)carbonyl)amino)-6-methyltetrahydro-2H-pyran-2,5-diyl bis(4-nitrobenzoate) (CAS 177650-91-8)
- D-Alanine Sofosbuvir (CAS 1064684-71-4)
- N-(4-Chloro-2-methoxy-5-methylphenyl)-2-((4-(4-chlorophenyl)-5-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 476484-50-1)
- Tirofiban Impurity 71 (CAS CATO-C4X-125471)
- Gefitinib Impurity 8 (CAS 847949-49-9)
- Teneligliptin impurity 57 (CAS CATO-C4X-176057)
- 3-(Dimethylamino)-1-phenyl-2,3-dihydroquinazolin-4(1H)-one (CAS 90071-01-5)
- N-(3-bromo-5-fluorobenzyl)cyclopropanamine (CAS 1094761-46-2)
- 2-(4-Amino-1h-pyrazol-1-yl)-N-propylpropanamide (CAS 1152576-45-8)
- N-(4-((5-(4-Chlorophenyl)-1,3,4-oxadiazol-2-yl)methoxy)phenyl)acetamide (CAS 204651-69-4)
- Ubrogepant Impurity 11 (CAS 2568065-21-2)
- N-methyl-2-(pyridin-2-yl)tetrahydrothiophene-2-carbothioamide (CAS 76732-75-7)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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