Zafirlukast Methyl Ester Impurity CAS 107754-19-8
| CAS No. | 107754-19-8 |
| Molecular Formula | C25H28N2O5 |
| Molecular Weight | 436.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Zafirlukast Methyl Ester Impurity (CAS 107754-19-8), a certified reference material (molecular formula C25H28N2O5, MW 436.50 g/mol) for analytical method development and quality control.
Based on its molecular formula C25H28N2O5, Zafirlukast Methyl Ester Impurity contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 436.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 manufactures Zafirlukast Methyl Ester Impurity under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H28N2O5 |
| Molecular Weight | 436.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Zafirlukast Standards
- Zafirlukast M1 Metabolite (CAS 219583-10-5)
- Zafirlukast Nitroindole Genotoxic Impurity CRS (CAS 107754-15-4)
- Zafirlukast Impurity 3 (CAS 107754-14-3)
- Zafirlukast m-Tolyl Isomer (CAS 1159195-69-3)
- Zafirlukast p-Tolyl Isomer (CAS 1159195-70-6)
- Zafirlukast (CAS 107753-78-6)
- Zafirlukast M5 MetaboliteDISCONTINUED (CAS 219582-82-8)
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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