Naproxen EP Impurity N CAS 5111-65-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 5111-65-9 |
| Molecular Formula | C11H9BrO |
| Molecular Weight | 237.09 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Naproxen EP Impurity N (CAS 5111-65-9) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H9BrO. Molecular weight: 237.09 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H9BrO |
| Molecular Weight | 237.09 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Related Naproxen Standards
- Naproxen Impurity 54 (CAS 1268842-11-0)
- rac-Naproxen-13C,d3 (CAS 1216704-11-8)
- (S)-Naproxen-d3 (CAS 1094102-82-5)
- (+/-)-naproxen-(methoxy-d3) 958293-79-3 (CAS 958293-79-3)
- Naproxen Impurity 26 (CAS 23981-80-8)
- Naproxen EP Impurity G (R-Naproxen) (CAS 23979-41-1)
- Naproxen (CAS 22204-53-1)
- Naproxen EP Impurity E (CAS 26159-35-3)
Recommended Standards
- 6940-50-7 4429SL694F p-Bromomandelic acid Benzeneacetic acid, 4-bromo-alpha-hydroxy- 4-Bromomandelic acid Mandelic acid, p-bromo- (8CI) EINECS 230-085-1 NSC 60138 UNII-4429SL694F (CAS 6940-50-7)
- Methyl 2-acetyl-5-bromopentanoate (CAS CATO-C4X-172828)
- 5034-74-2 A828081 N-cyclohexyl-N-(cyclohexylcarbamoyl)-4-[methanoyl(methyl)amino]benzamide N-cyclohexyl-N-[(cyclohexylamino)-oxomethyl]-4-[formyl(methyl)amino]benzamide (CAS 5034-74-2)
- Agomelatine Impurity 25 (CAS 6836-22-2)
- CAS 1082985-24-7 (CAS 1082985-24-7)
- 5-Benzyl-6-methyl-2-(5-oxo-3-phenyl-2,5-dihydro-1H-pyrazol-1-yl)-3,4-dihydropyrimidin-4-one (CAS 866019-73-0)
- N4-Benzoyl-2-O-tert-butyldimethylsilyl-5-O-DMT-cytidine 3-CE phosphoramidite (CAS 118380-84-0)
- 4-Phenyl-5-(2-phenylethyl)-4h-1,2,4-triazol-3-yl hydrosulfide (CAS 114246-71-8)
- Butofilolol (CAS 58930-32-8)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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