Loxoprofen Impurity 68 CAS 83648-76-4
| CAS No. | 83648-76-4 |
| Molecular Formula | C15H20O3 |
| Molecular Weight | 248.32 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.
CATO supplies Loxoprofen Impurity 68 (CAS 83648-76-4), a pharmacopoeial impurity reference standard (molecular formula C15H20O3, MW 248.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C15H20O3, Loxoprofen Impurity 68 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.32 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 68 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 | C15H20O3 |
| Molecular Weight | 248.32 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related Loxoprofen Standards
- Loxoprofen Impurity 112 (CAS 88378-21-6)
- Loxoprofen Impurity 20 (CAS 83599-40-0)
- Loxoprofen Impurity 96 (CAS CATO-C4X-148896)
- Loxoprofen Impurity 97 (CAS CATO-C4X-148897)
- Loxoprofen-d3 (CAS CATO-C4X-1488102)
- Loxoprofen-d4 (CAS 68767-14-6 (non-labelled))
- Loxoprofen Impurity 147 (CAS CATO-C4X-1488147)
- Loxoprofen Impurity 148 (CAS CATO-C4X-1488148)
Recommended Standards
- Bupivacaine Impurity 13 (CAS 51989-48-1)
- Atenolol EP Impurity H (CAS 29277-73-4)
- Mianserin Impurity 78 (CAS CATO-C4X-136978)
- Betaxolol Impurity 12 (CAS CATO-C4X-155912)
- Cefcapene Impurity 6 (CAS 86978-24-7)
- Mebeverine EP Impurity I (CAS CATO-C4X-168711)
- Ensifentrine impurity (CAS 4359-64-2)
- Dihydro Ergotamine-13C,d3 Mesylate (CAS 1356841-81-0)
- Methyl 2-hydroxy-4-oxo-6-pentylcyclohex-2-enecarboxylate (CAS 27871-89-2)
- trans-1-tert-butyl-2-[1-(2-methoxyethyl)-1H-pyrazol-4-yl]-5-oxopyrrolidine-3-carbonitrile (CAS 1808696-20-9)
- 1-[2-(4-fluorophenyl)ethyl]-5-oxopyrrolidine-3-carboxylic acid (CAS 842971-84-0)
- 1,2,3,4-Tetrahydroacridine-9-carbonitrile (CAS 202657-86-1)
- N-(Triphenylphosphoranylidene)ethenamine (CAS 121198-57-0)
- (Tyr?)-C-Peptide (dog) (CAS 101135-67-5)
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