Fenbufen Impurity 2 (Fenbufen EP Impurity B) CAS 34682-12-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 34682-12-7 |
| Molecular Formula | C16H12O3 |
| Molecular Weight | 252.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fenbufen Impurity 2 (Fenbufen EP Impurity B) (CAS 34682-12-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C16H12O3. Molecular weight: 252.26 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C16H12O3 |
| Molecular Weight | 252.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Fenbufen Standards
- Fenbufen EP Impurity B (CAS CATO-C4X-19392)
- Fenbufen (CAS 36330-85-5)
- Fenbufen-d9 (CAS 1189940-96-2)
- Fenbufen Methyl Ester (CAS 54011-27-7)
- Fenbufen EP Impurity D (CAS CATO-C4X-19393)
- Fenbufen Ethyl Ester (CAS 1230-54-2)
- Fenbufen 4-Chlorophenyl Butanoic Acid (CAS 3984-34-7)
- Fenbufen Impurity 5 (CAS CATO-C4X-19395)
Recommended Standards
- Ethyl 9-oxo-9H-fluorene-4-carboxylate (CAS 5447-75-6)
- Hydroxy-PEG4-CH2COOH (CAS 70678-95-4)
- Ethyl 9-oxo-9H-fluorene-2-carboxylate (CAS 860215-06-1)
- 2-(6-Chloro-[3,4'-bipyridin]-4-yl)acetonitrile (CAS 1227516-46-2)
- 4-Chloro-2-(2-fluorophenyl)pyridine (CAS 918530-84-4)
- 5-(3-Amino-1h-pyrazol-1-yl)pentan-1-ol (CAS 1251277-04-9)
- (2Z)-2-{4-[2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethyl]-1,3-thiazol-2-yl}-3-(4-fluorophenyl)prop-2-enenitrile (CAS 1164456-32-9)
- Eravacycline impurity 32 (CAS CATO-C4X-293832)
- 1-Cyclohexyl-2,2,2-trifluoro-N-methylethan-1-amine (CAS 1314957-93-1)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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 13829788188 / jacky.chen@cato-chem.com