Naproxen EP Impurity A CAS 52079-10-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 52079-10-4 |
| Molecular Formula | C13H12O3 |
| Molecular Weight | 216.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Naproxen EP Impurity A (CAS 52079-10-4) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C13H12O3. Molecular weight: 216.23 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C13H12O3 |
| Molecular Weight | 216.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Naproxen Standards
- Naproxen Acid (CAS 123050-98-6)
- Naproxen Impurity 2 (CAS 60756-73-2)
- Naproxen EP Impurity I (CAS 23981-47-7)
- Naproxen Impurity N1 (CAS 27602-75-1)
- Naproxen Impurity 6 (CAS 174172-95-3)
- Naproxen Dehydro Impurity (CAS 27602-79-5)
- Naproxen Impurity 41 (CAS CATO-C4X-170841)
- Naproxen Impurity 42 (CAS CATO-C4X-170842)
Recommended Standards
- Cilnidipine impurity 20 (CAS CATO-C4X-179620)
- Agomelatine Impurity 25 (CAS 6836-22-2)
- Menaquinone Impurity 3 (CAS 110327-29-2)
- Thiocolchicoside EP Impurity H (10-Demethoxy Colchicoside) (CAS CATO-C4X-27704)
- Isosorbide Dinitrate Impurity 9 (CAS 13241-36-6)
- 3-Cyclopropyl-4-methyl-4H-1,2,4-triazole hydrochloride (CAS 1609403-34-0)
- Pirbuterol (CAS 38677-81-5)
- (8α,9R)-9-(9-Phenylmethoxy)cinchonan-6'-ol (CAS 838821-39-9)
- 4,4,5,5-Tetramethyl-2-[3-(2-methylpropoxy)phenyl]-1,3,2-dioxaborolane (CAS 1338916-31-6)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
Why CATO?
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