Amlexanox Impurity 5 CAS CATO-C4X-21765
| CAS No. | CATO-C4X-21765 |
| Molecular Formula | C18H18N2O4 |
| Molecular Weight | 326.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Amlexanox Impurity 5 (C18H18N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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 326.35 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.
Amlexanox Impurity 5 (CAS CATO-C4X-21765) is a certified pharmaceutical impurity reference standard with the molecular formula C18H18N2O4 and a molecular weight of 326.35 g/mol.
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.
CATO manufactures Amlexanox Impurity 5 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 | C18H18N2O4 |
| Molecular Weight | 326.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Amlexanox Standards
- Amlexanox Impurity 7 (CAS CATO-C4X-21767)
- Amlexanox (CAS 68302-57-8)
- Amlexanox Impurity 2 (CAS CATO-C4X-21762)
- Amlexanox Impurity 4 (CAS CATO-C4X-21764)
- Amlexanox Impurity 3 (CAS CATO-C4X-21763)
- Amlexanox Impurity 8 (CAS CATO-C4X-21768)
- Amlexanox Impurity 6 (CAS CATO-C4X-21766)
- Amlexanox Impurity 1 (CAS CATO-C4X-21761)
Recommended Standards
- Ruxolitinib Impurity 1 (CAS 2606144-44-7)
- Phoxim Impurity 2 (CAS 14816-35-4)
- Dopamine Impurity 98 (CAS CATO-C4X-190898)
- H-Pro-Pro-Asp-NH? (CAS 850440-85-6)
- Mirabegron Impurity 34 (CAS 83304-13-6)
- Theophylline Impurity 15 (CAS CATO-C4X-182315)
- Tadalafil Impurity N23 (CAS 951661-84-0)
- 5-(Aminomethyl)furan-2-sulfonamide (CAS 712256-45-6)
- (4-Bromo-2,6-dimethylphenyl)methanamine hydrochloride (CAS 2253630-40-7)
- {[3-(Trifluoromethyl)phenyl]methyl}phosphonic acid (CAS 146780-09-8)
- N-Nitroso Phentolamine Mesylate EP Impurity C (CAS 497930-24-2)
- (R)-1-(4-chloro-3-fluorophenyl)-2,2-dimethylpropan-1-amine (CAS 1388084-85-2)
- Aztreonam Impurity N1 (CAS 87791-62-6)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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