Loxoprofen Impurity 145 CAS 2274853-20-0
| CAS No. | 2274853-20-0 |
| Molecular Formula | C18H22O5 |
| Molecular Weight | 318.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Loxoprofen Impurity 145 (C18H22O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Loxoprofen Impurity 145 (CAS 2274853-20-0) is a certified pharmaceutical impurity reference standard with the molecular formula C18H22O5 and a molecular weight of 318.36 g/mol.
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 manufactures Loxoprofen Impurity 145 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 | C18H22O5 |
| Molecular Weight | 318.36 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
Related Loxoprofen Standards
- Loxoprofen Impurity 108 (CAS CATO-C4X-1488108)
- Loxoprofen impurity 123 (CAS CATO-C4X-1488123)
- Loxoprofen Impurity 130 (CAS 261521-19-1)
- Loxoprofen Impurity 30 (CAS 308279-38-1)
- Loxoprofen Impurity 35 (CAS CATO-C4X-148835)
- Loxoprofen Impurity 52 (CAS CATO-C4X-148852)
- Loxoprofen Impurity 81 (CAS CATO-C4X-148881)
- Loxoprofen Impurity 137 (CAS CATO-C4X-1488137)
Recommended Standards
- N-(2-(Dimethylamino)-2-(4-fluorophenyl)ethyl)-2-(4-fluorophenyl)acetamide (CAS 899975-58-7)
- Methyl 8-isopropyl-4,6,7-trimethoxy-2-naphthoate (CAS 213682-35-0)
- Zearalenone (CAS 17924-92-4)
- Laurycolactone A (CAS 85643-76-1)
- Dapagliflozin Impurity 147 (CAS CATO-C4X-1138147)
- Cilnidipine impurity 22 (CAS CATO-C4X-179622)
- Erlotinib Impurity 82 (CAS CATO-C4X-106982)
- Fluticasone Impurity 80 (CAS CATO-C4X-165080)
- (Dichloromethyl)cyclohexane (CAS 24099-71-6)
- 8,8-Dimethyl-6-(methylamino)-5,6,7,8-tetrahydronaphthalen-2-ol (CAS 801211-79-0)
- 3-(4,4-Dimethyl-2,5-dioxoimidazolidin-1-yl)propanoic acid (CAS 90197-83-4)
- tert-butyl N-({1-[3-(hydroxymethyl)phenyl]-1H-1,2,3-triazol-4-yl}methyl)carbamate (CAS 2059948-51-3)
- 1,3,5-Tris(hydroxymethyl)-1,3,5-triazinane-2,4,6-trione (CAS 10471-40-6)
- Peptide Impurity 28 (CAS 1350456-64-2)
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