Flurbiprofen EP Impurity D CAS 42771-79-9
| CAS No. | 42771-79-9 |
| Molecular Formula | C14H11FO |
| Molecular Weight | 214.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Flurbiprofen EP Impurity D 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.
As a process- or degradation-related impurity, Flurbiprofen EP Impurity D (CAS 42771-79-9, C14H11FO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Flurbiprofen EP Impurity D (C14H11FO) contains a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 214.23 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C14H11FO |
| Molecular Weight | 214.23 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 57 (CAS 81937-32-8)
- Flurbiprofen EP Impurity E (CAS 137045-30-8)
- Flurbiprofen Impurity 162 (CAS 861795-19-9)
- Flurbiprofen Impurity 37 (CAS 56430-67-2)
- 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
- Tris(1-pyrazolyl)methane (CAS 80510-03-8)
- Levodopa EP Impurity C-d3 (S-isomer) (L-3-O-Methyldopa-d3) (CAS 586954-09-8)
- N,N-Diethyl-4,6-bis(hydroxyamino)-1,3,5-triazin-2-amine (CAS 33901-81-4)
- Etrasimod Impurity 70 (CAS CATO-C4X-321470)
- Baloxavir Impurity 54 (CAS 2365472-39-3)
- Caspofungin EP Impurity G Acetate (CAS CATO-C4X-157532)
- Dalbavancin Impurity 19 (CAS CATO-C4X-160219)
- 1-(4-Chloro-2-nitrophenyl)-4-methylpiperazine (CAS 65639-68-1)
- 2-n-(Naphthalen-1-yl)pyridine-2,3-diamine (CAS 78750-71-7)
- 1-Phenyl-N-(m-tolyl)-1H-pyrazolo[3,4-b]pyrazin-5-amine (CAS 87594-93-2)
- 5-Hydroxy-3',3,4',5',7-pentamethoxyflavone (CAS 5084-19-5)
- 5-(Chloromethyl)-1-(2-phenylethyl)-1h-1,2,3,4-tetrazole (CAS 1340222-64-1)
- Ethyl 2-(2,5-dichlorothiophen-3-yl)acetate (CAS 37784-66-0)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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