Flurbiprofen Impurity 76 CAS CATO-C4X-144476
| CAS No. | CATO-C4X-144476 |
| Molecular Formula | C25H31FO2 |
| Molecular Weight | 382.51 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 Flurbiprofen Impurity 76 (CAS CATO-C4X-144476), a pharmacopoeial impurity reference standard (molecular formula C25H31FO2, MW 382.51 g/mol) used for the identification and quantification of trace impurities in APIs.
Flurbiprofen Impurity 76 (C25H31FO2) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Flurbiprofen Impurity 76 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H31FO2 |
| Molecular Weight | 382.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 20 (CAS CATO-C4X-144420)
- Flurbiprofen Impurity 22(Mixture of Diastereomers) (CAS CATO-C4X-144422)
- Flurbiprofen Impurity 28 (CAS CATO-C4X-144428)
- Flurbiprofen Impurity 56 (CAS CATO-C4X-144456)
- Flurbiprofen Impurity 75 (CAS CATO-C4X-144475)
- Flurbiprofen Impurity 17 (Mixture of Diastereomers) (CAS CATO-C4X-144477)
- Flurbiprofen Impurity 96 (CAS CATO-C4X-144496)
- Flurbiprofen Menthyl Ester (CAS 908559-44-4)
Recommended Standards
- Erbium(III) oxide (CAS 12061-16-4)
- Eletriptan impurity 01 (CAS 1252673-29-2)
- Buspirone EP Impurity C (CAS 257877-45-5)
- BMP22 (CAS 1306684-90-1)
- Ceritinib Impurity 75 (CAS CATO-C4X-104875)
- Estradiol Impurity 49 (CAS CATO-C4X-163649)
- Lornoxicam Impurity 110 (CAS CATO-C4X-2016110)
- ((1S,2S,3S,5R)-2,6,6-trimethylbicyclo[3.1.1]Heptan-3-yl)methanamine hydrochloride (CAS 57357-84-3)
- Allamandicin (CAS 51838-83-6)
- Peptide Impurity 11 X TFA Salt (CAS CATO-CPTD788811)
- 5,6-Dihydro-4H-cyclopenta[b]thiophen-4-ol (CAS 954238-22-3)
- Lanthanum Acetylacetonate (CAS 14284-88-9)
- 1-(3-Ethynylphenyl)-3-(2-methoxyethyl)urea (CAS 1223360-98-2)
- Fibrinogen Related Peptide (CAS 80755-86-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com