Flurbiprofen Impurity 26 CAS 64858-90-8
| CAS No. | 64858-90-8 |
| Molecular Formula | C17H17FO2 |
| Molecular Weight | 272.31 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 Flurbiprofen Impurity 26 (CAS 64858-90-8), a pharmacopoeial impurity reference standard (molecular formula C17H17FO2, MW 272.31 g/mol) used for the identification and quantification of trace impurities in APIs.
Flurbiprofen Impurity 26 (C17H17FO2) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H17FO2 |
| Molecular Weight | 272.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 106 (CAS 61467-10-5)
- Flurbiprofen impurity 122 (CAS 41635-83-0)
- Flurbiprofen Impurity 38 (CAS CATO-C4X-144438)
- Flurbiprofen impurity 102 (CAS CATO-C4X-1444102)
- Flurbiprofen Impurity 88 (CAS 1915720-16-9)
- Flurbiprofen Impurity 17 (CAS 78543-08-5)
- Flurbiprofen Impurity 27 (CAS CATO-C4X-144427)
- Flurbiprofen Impurity 16 (CAS 52807-12-2)
Recommended Standards
- Tris(1-methyl-1H-pyrazol-5-yl)methanol (CAS 92110-78-6)
- Palmitic Acid-?13C16 (CAS 56599-85-0)
- 4'-(Tert-butyl)-5-fluoro-[1,1'-biphenyl]-2-carboxylic acid (CAS 926200-09-1)
- Boc-ε-azido-Nle-OH (CAS 846549-33-5)
- Cefprozil (Z)-isomer Impurity 48 (CAS CATO-C4X-149248)
- Tapentadol EP Impurity D (CAS CATO-C4X-209920)
- Baxdrostat Impurity 23 (CAS 1428652-33-8)
- 1-(3-Ethynylphenyl)propan-1-one (CAS 268233-61-0)
- 3,5-Dimethoxy-1h-pyrazole (CAS 119224-75-8)
- 4-Methyl-1H-pyrrol-2-amine (CAS 1192770-03-8)
- 4-Chloro-2-fluoro-3-methoxybenzoic acid (CAS 1169870-80-7)
- 2-Amino-6-methylpyrimidine-4-carboximidamide (CAS 1116339-75-3)
- (3,4-Dimethylphenyl)(3-hydroxyazetidin-1-yl)methanone (CAS 1342412-25-2)
- Serpent Peptide (CAS 823202-99-9)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com