Flurbiprofen Impurity 29 CAS 1206101-29-2
| CAS No. | 1206101-29-2 |
| Molecular Formula | C24H16F2 |
| Molecular Weight | 342.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Flurbiprofen Impurity 29 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.
Flurbiprofen Impurity 29 (CAS 1206101-29-2) is a certified pharmaceutical impurity reference standard with the molecular formula C24H16F2 and a molecular weight of 342.38 g/mol.
Structurally, Flurbiprofen Impurity 29 (C24H16F2) contains fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 342.38 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C24H16F2 |
| Molecular Weight | 342.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 81 (CAS CATO-C4X-144481)
- Flurbiprofen Impurity 1 (CAS 42771-81-3)
- Flurbiprofen Impurity 14 (CAS CATO-C4X-144414)
- Flurbiprofen Impurity 159 (CAS 179766-28-0)
- Flurbiprofen Impurity 100 (CAS CATO-C4X-1444100)
- Flurbiprofen Impurity 94 (CAS 121734-75-6)
- Flurbiprofen Impurity 156 (CAS CATO-C4X-1444156)
- Flurbiprofen Impurity 128 (CAS 1515948-47-6)
Recommended Standards
- 22697-65-0 5V53651JOR 4',5,7-Trihydroxy-3,6-dimethoxyflavone 5,7-Dihydroxy-2-(4-hydroxyphenyl)-3,6-dimethoxy-4H-1-benzopyran-4-one NSC 271638 UNII-5V53651JOR (CAS 22697-65-0)
- 6-tert-Butyl-2-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)-3,4-dihydropyrimidin-4-one (CAS 478259-92-6)
- Baloxavir Impurity 23 (CAS CATO-C4X-210823)
- 5-(Piperidin-1-ylmethyl)-4-[2-(trifluoromethyl)phenyl]-4h-1,2,4-triazole-3-thiol (CAS 790270-83-6)
- Raltitrexed Impurity 39 (CAS CATO-C4X-138639)
- Atorvastatin impurity 163 (CAS 131000-98-1)
- Oxybutynin Impurity 14 (CAS CATO-C4X-197214)
- Ethyl (E)-N-(1-benzyl-4-carbamoyl-1H-1,2,3-triazol-5-yl)formimidate (CAS 1232824-04-2)
- Ozanimod Impurity 27 (CAS CATO-C4X-29027)
- 6-(tert-Butyl)-2-(4-hydroxyphenyl)pyrimidin-4(1H)-one (CAS 651722-78-0)
- 2-(Bis(pyridin-2-ylmethyl)amino)ethanol (CAS 149860-22-0)
- (1-(4-Chlorophenyl)ethyl)hydrazine hydrochloride (CAS 75333-16-3)
- Visomitin Impurity 1 (CAS 1146973-74-1)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
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