Naproxen Impurity 5 CAS 17696-64-9
| CAS No. | 17696-64-9 |
| Molecular Formula | C6H11ClO2 |
| Molecular Weight | 150.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Naproxen Impurity 5 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.
Naproxen Impurity 5 (CAS 17696-64-9) is a high-purity analytical reference standard with the molecular formula C6H11ClO2 and a molecular weight of 150.60 g/mol.
Naproxen Impurity 5 (C6H11ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H11ClO2 |
| Molecular Weight | 150.60 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Naproxen Standards
- Naproxen EP Impurity M (CAS 93-04-9)
- Naproxen Impurity 29 (CAS 91059-47-1)
- Naproxen EP Impurity H (CAS 5111-66-0)
- Naproxen Nitrile Impurity (CAS 67886-70-8)
- Naproxen Impurity 19 (CAS CATO-C4X-170819)
- Naproxen Impurity 53 (CAS 150493-03-1)
- Naproxen Impurity 16 (CAS 34352-92-6)
- Naproxen EP Impurity L (CAS 3900-45-6)
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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