Flurbiprofen Axetil CAS 91503-79-6
| CAS No. | 91503-79-6 |
| Molecular Formula | C19H19FO4 |
| Molecular Weight | 330.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Flurbiprofen Axetil (C19H19FO4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Flurbiprofen Axetil (CAS 91503-79-6) is a high-purity analytical reference standard with the molecular formula C19H19FO4 and a molecular weight of 330.35 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.
Physical & Chemical Properties
| Molecular Formula | C19H19FO4 |
| Molecular Weight | 330.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen impurity 103 (CAS CATO-C4X-1444103)
- Flurbiprofen Impurity 104 (CAS CATO-C4X-1444104)
- Flurbiprofen Impurity 109 (CAS 119623-42-6)
- Flurbiprofen Impurity 25 (CAS 91503-88-7)
- (R)-Flurbiprofen Axetil (Mixture of Diastereomers) (CAS 2375240-97-2)
- (S)-Flurbiprofen Axetil (Mixture of Diastereomers) (CAS 1401087-64-6)
- Flurbiprofen Impurity 38 (CAS 26039-74-7)
- Flurbiprofen Impurity 35 (CAS CATO-C4X-144435)
Recommended Standards
- N-(6,7-Dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-2-yl)-1,3-dimethyl-1H-pyrazole-5-carboxamide (CAS 1013796-73-0)
- Methyl 4-((N-(tert-butoxycarbonyl)sulfamoyl)amino)benzoate (CAS 1017782-69-2)
- Cyclopropyl(4-((1-(3-fluorophenyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)methanone (CAS 1021254-06-7)
- Cyclopropyl(4-((1-(4-fluorophenyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)methanone (CAS 1040650-04-1)
- 3-methyl-1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-amine,HCl (CAS 1431965-29-5)
- 7-Amino-2-methylquinoline-5-carboxylic acid (CAS 502172-25-0)
- 3-Methyl-5-(2-(methylthio)-phenyl)-5-oxovaleric acid (CAS 951892-86-7)
- 3-Chloro-4-iodo-2-methoxyaniline (CAS 943831-01-4)
- 2-Hydroxy-4-methylpyrimidine hydrochloride (CAS 15231-48-8)
- 3-(4-Chlorophenyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridine (CAS 400074-63-7)
- (1R,4r)-4-(6-fluoroquinolin-4-yl)cyclohexyl methanesulfonate (CAS 1923846-50-7)
- 3-Phenylisoxazol-5(4H)-imine (CAS 90417-07-5)
- (2R)-2,3-dihydro-1H-indol-2-ylmethanol (CAS 77122-21-5)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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