Pyridoxine impurity 4 CAS 913696-26-1
| CAS No. | 913696-26-1 |
| Molecular Formula | C15H23NO4 |
| Molecular Weight | 281.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyridoxine impurity 4 (CAS 913696-26-1), a pharmacopoeial impurity reference standard (molecular formula C15H23NO4, MW 281.35 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Pyridoxine impurity 4 (C15H23NO4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Pyridoxine impurity 4 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.
Physical & Chemical Properties
| Molecular Formula | C15H23NO4 |
| Molecular Weight | 281.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Pyridoxine Standards
- Pyridoxine impurity 68 (CAS 4943-90-2)
- Pyridoxine impurity 88 (CAS CATO-C4X-187788)
- Pyridoxine Impurity 81 (CAS CATO-C4X-187781)
- Pyridoxine /Vitamin B6 Impurity C93 (CAS 5223-10-9)
- Pyridoxine Impurity 6 (CAS 1385767-85-0)
- Pyridoxine Impurity 21 (CAS 96181-47-4)
- Pyridoxine Diacetate (CAS 26280-83-1)
- Pyridoxine Impurity 53 (CAS CATO-C4X-187753)
Recommended Standards
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- Tegoprazan Impurity 119 (CAS CATO-C4X-2297119)
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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