Flurbiprofen Impurity 37 CAS 56430-67-2
| CAS No. | 56430-67-2 |
| Molecular Formula | C14H13FO |
| Molecular Weight | 216.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system, Flurbiprofen Impurity 37 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 216.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Flurbiprofen Impurity 37 (CAS 56430-67-2), a pharmacopoeial impurity reference standard (molecular formula C14H13FO, MW 216.25 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Flurbiprofen Impurity 37 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 | C14H13FO |
| Molecular Weight | 216.25 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen EP Impurity E (CAS 137045-30-8)
- Flurbiprofen EP Impurity D (CAS 42771-79-9)
- Flurbiprofen Impurity 57 (CAS 81937-32-8)
- Flurbiprofen Impurity 162 (CAS 861795-19-9)
- Flurbiprofen Impurity 79 (CAS CATO-C4X-144479)
- Flurbiprofen Impurity 90 (CAS 145983-05-7)
- Flurbiprofen Impurity 61 (CAS 95037-98-2)
- Flurbiprofen Impurity 85 (CAS CATO-C4X-144485)
Recommended Standards
- 4-Hydroxy-2,3,5-trimethylbenzenesulfonic acid (CAS 40764-21-4)
- Doxofylline Impurity 18 (CAS 42772-85-0)
- 0154AF 3-(5-Fluoro-1H-benzoimidazol-2-yl)-propionic acid 82138-57-6 C10H9FN2O2 (CAS 82138-57-6)
- Safinamide Impurity 17 (CAS 1205608-96-3)
- Venetoclax Impurity 37 (CAS CATO-C4X-249537)
- Carebastine Impurity 1 (CAS CATO-C4X-31691)
- Methylnaltrexone Bromide Impurity 14 (CAS CATO-C4X-152114)
- 4-Cyano-3-(difluoromethyl)-6-hydroxypyridine-2-sulfonyl chloride (CAS 1805423-95-3)
- Gallium Chlorophthalocyanine (CAS 19717-79-4)
- 2-Amino-1-(3-nitrophenyl)ethan-1-one hydrochloride (CAS 36765-84-1)
- 6-Chloro-7-ethyl-2-methyl-7H-purine (CAS 1707571-15-0)
- 6-Methyl-1H-pyrazolo[3,4-d]pyrimidin-3(2H)-one (CAS 120267-07-4)
- 2-(3,3-Dimethylazetidin-1-yl)acetic acid hydrochloride (CAS 1803590-77-3)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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