Loxoprofen Impurity 7 CAS CATO-C4X-14887
| CAS No. | CATO-C4X-14887 |
| Molecular Formula | C18H24O4 |
| Molecular Weight | 304.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Loxoprofen Impurity 7 (CAS CATO-C4X-14887), a pharmacopoeial impurity reference standard (molecular formula C18H24O4, MW 304.38 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H24O4, Loxoprofen Impurity 7 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.38 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.
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.
Physical & Chemical Properties
| Molecular Formula | C18H24O4 |
| Molecular Weight | 304.38 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Loxoprofen Standards
- Loxoprofen Impurity 132 (CAS CATO-C4X-1488132)
- Loxoprofen Impurity 70 (CAS 1027957-36-3)
- Loxoprofen Impurity 77 (CAS CATO-C4X-148877)
- Loxoprofen Impurity 78 (CAS CATO-C4X-148878)
- Loxoprofen Impurity 66 (CAS 334948-52-6)
- Loxoprofen impurity 85 (CAS 335096-46-3)
- Loxoprofen impurity 124 (CAS CATO-C4X-1488124)
- Loxoprofen Impurity 108 (CAS CATO-C4X-1488108)
Recommended Standards
- 1-hydroxypropan-2-yl 2-(4-((2-oxocyclopentyl)methyl)phenyl)propanoate (CAS CATO-C4X-1488158)
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- Busulfan Impurity 22 (CAS CATO-C4X-145522)
- Estetrol Impurity 5 (CAS CATO-C4X-32505)
- Flomoxef Impurity 19 (CAS CATO-C4X-138219)
- S-Elagolix Impurity 7 (CAS CATO-C4X-20687)
- Edaravone Impurity N5 (CAS 16394-90-4)
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- 2,3,5-Trichloro-4-(methylthio)-6-(trifluoromethyl)pyridine (CAS 136583-93-2)
- 2-Chloro-4-iodo-3-(methoxymethoxy)pyridine (CAS 1207973-14-5)
- tert-butyl N-{3-[(cyclopentylmethyl)amino]propyl}carbamate hydrochloride (CAS 1803606-65-6)
- Glucagon receptor antagonist I (CAS 438618-32-7)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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