Pyridoxine Impurity 6 CAS 23429-05-2
| CAS No. | 23429-05-2 |
| Molecular Formula | C7H9NO4 |
| Molecular Weight | 171.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H9NO4, Pyridoxine Impurity 6 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.15 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 Pyridoxine Impurity 6 (CAS 23429-05-2), a pharmacopoeial impurity reference standard (molecular formula C7H9NO4, MW 171.15 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H9NO4 |
| Molecular Weight | 171.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Pyridoxine Standards
- Pyridoxine Impurity 15 (CAS CATO-C4X-187715)
- Pyridoxine impurity 82 (CAS CATO-C4X-187782)
- Pyridoxine (CAS 65-23-6)
- Pyridoxine D5 Hydrochloride (CAS 82896-38-6)
- Pyridoxine-D5 (CAS 688302-31-0)
- Pyridoxine Impurity 16 (CAS 58947-70-9)
- Pyridoxine /Vitamin B6 Impurity 67 (CAS CATO-C4X-187767)
- Pyridoxine impurity 93 (CAS 524-07-2)
Recommended Standards
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- HISTIDINE Impurity 12 (CAS CATO-C4X-323912)
- Rufinamide Impurity 8 (CAS 922-67-8)
- Terbutaline Impurity 62 (CAS CATO-C4X-118362)
- Meropenem Impurity 57 (CAS CATO-C4X-130957)
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