Loxoprofen Impurity 151 CAS 1218987-96-2
| CAS No. | 1218987-96-2 |
| Molecular Formula | C11H13BrO2 |
| Molecular Weight | 257.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Loxoprofen Impurity 151 (CAS 1218987-96-2) is a certified pharmaceutical impurity reference standard with the molecular formula C11H13BrO2 and a molecular weight of 257.12 g/mol.
Based on its molecular formula C11H13BrO2, Loxoprofen Impurity 151 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 257.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Loxoprofen Impurity 151 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 | C11H13BrO2 |
| Molecular Weight | 257.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
Related Loxoprofen Standards
- Loxoprofen Impurity 104 (CAS 56607-18-2)
- Loxoprofen Impurity 152 (CAS CATO-C4X-1488152)
- Loxoprofen Impurity 18 (CAS 99807-54-2)
- Loxoprofen Impurity 114 (CAS CATO-C4X-1488114)
- Loxoprofen Impurity 11 (CAS 81762-92-7)
- Loxoprofen impurity 74 (CAS CATO-C4X-148874)
- Loxoprofen Impurity 146 (CAS CATO-C4X-1488146)
- Loxoprofen Impurity 15(Mixture of Diastereomers) (CAS 1091621-62-3)
Recommended Standards
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- 2-Amino-3-phenyl-1-(pyrrolidin-1-yl)propan-1-one (CAS 92008-59-8)
- 2-{3-[(pyrrolidin-1-yl)methyl]-1H-indol-1-yl}acetic acid (CAS 879038-41-2)
- 2-Methylfuro[3,4-b]pyrazine-5,7-dione (CAS 122942-34-1)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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