Naproxen Sodium CAS 26159-34-2
| CAS No. | 26159-34-2 |
| Molecular Formula | C14H13O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H13O3Na, Naproxen Sodium contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 252.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies Naproxen Sodium (CAS 26159-34-2), a certified reference material (molecular formula C14H13O3Na, MW 252.25 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Naproxen Sodium 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 | C14H13O3 Na |
| Molecular Weight | 252.25 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Naproxen Standards
- (S)-Naproxen-d3 (CAS 1094102-82-5)
- Naproxen Impurity 46 (CAS 111198-00-6)
- (R)-Naproxen Acyl-β-D-glucuronide (CAS 112828-15-6)
- Naproxen EP Impurity D (CAS 116883-61-5)
- Naproxen EP Impurity D (CAS 116883-62-6)
- rac Naproxen-d3 Methyl Ester (CAS 1189511-76-9)
- rac-Naproxen-13C,d3 (CAS 1216704-11-8)
- Naproxen Acid (CAS 123050-98-6)
Recommended Standards
- 2-[(3,4,4-Trifluorobut-3-en-1-yl)sulfanyl]-1,3-benzothiazole (CAS 27443-04-5)
- 2-(Difluoromethyl)-5-methoxy-6-methylpyridine-3-carbonyl chloride (CAS 1805197-83-4)
- Tert-butyl 4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-3,6-dihydropyridine-1(2h)-carboxylate (CAS 1167991-21-0)
- 1-Methylindoline-5-carbonyl chloride (CAS 1378285-07-4)
- 2-oxabicyclo[2.1.1]hexan-1-ylmethanamine;hydrochloride (CAS 2413903-70-3)
- 4-Methoxy-2-(trifluoromethyl)phenylaminehydrochloride (CAS 1185304-48-6)
- 3-Cyclopropoxy-N-methyl-5-sulfamoylpicolinamide (CAS 1243381-09-0)
- 2-benzenesulfonamido-5-chlorobenzoic acid (CAS 138964-58-6)
- 3-Methyl-3,3a,3b,4,5,6,6a,6b-octahydrocyclopenta[3,4]cyclobuta[1,2-c]pyrazole (CAS 113749-70-5)
- Peptide 433 (CAS CATO-CPTD788433)
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