Flurbiprofen Impurity 23 CAS 399-31-5
| CAS No. | 399-31-5 |
| Molecular Formula | C8H8FNO |
| Molecular Weight | 153.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Flurbiprofen Impurity 23.
CATO supplies Flurbiprofen Impurity 23 (CAS 399-31-5), a pharmacopoeial impurity reference standard (molecular formula C8H8FNO, MW 153.15 g/mol) used for the identification and quantification of trace impurities in APIs.
Flurbiprofen Impurity 23 (C8H8FNO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; 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.
CATO manufactures Flurbiprofen Impurity 23 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 | C8H8FNO |
| Molecular Weight | 153.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 54 (CAS 1845-59-6)
- Flurbiprofen Impurity 56 (CAS 5563-78-0)
- Flurbiprofen Impurity 8 (CAS 542-10-9)
- Flurbiprofen Impurity 87 (CAS 65487-32-3)
- Flurbiprofen Impurity 89 (CAS 75908-73-5)
- Flurbiprofen Impurity 42 (CAS CATO-C4X-144442)
- Flurbiprofen Impurity 41 (CAS 535-11-5)
- Flurbiprofen Impurity N1 (CAS 81937-33-9)
Recommended Standards
- 3-Fluoroacetanilide (CAS 351-28-0)
- Peramivir Impurity 34 (CAS CATO-C4X-183334)
- 3-(Trifluoromethyl)piperidine hydrochloride 768-31-0 C6H11ClF3N MFCD02183561 (CAS 768-31-0)
- 2-Fluoro-n-methylbenzamide (CAS 52833-63-3)
- Paricalcitol Impurity 17 (CAS 950586-26-2)
- Remdesivir Impurity 7 (CAS 1439900-56-7)
- Ribociclib Impurity 7 (CAS CATO-C4X-31007)
- 1-(2-Bromophenyl)pentan-2-ol (CAS 158526-54-6)
- 5-fluoroimidazo[1,2-a]pyridine-2-carbaldehyde (CAS 878197-67-2)
- 4-Amino-N-(1,1-dioxidothietan-3-yl)butanamide (CAS 1856281-13-4)
- 2-Methyl-N-(2-methyl-4-oxoquinazolin-3(4H)-yl)cyclopropanecarboxamide (CAS 732992-32-4)
- 2-Chloro-n-[2-(trifluoromethyl)phenyl]propanamide (CAS 949444-74-0)
- 2-Chloro-4-methylbenzonitrile (CAS 21423-84-7)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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