Pyridoxine (Vitamin B6) Impurity 54 CAS 23429-04-1
| CAS No. | 23429-04-1 |
| Molecular Formula | C9H13NO4 |
| Molecular Weight | 199.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 199.20 g/mol gives Pyridoxine (Vitamin B6) Impurity 54 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Pyridoxine (Vitamin B6) Impurity 54 (CAS 23429-04-1) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13NO4 and a molecular weight of 199.20 g/mol.
The molecular framework of Pyridoxine (Vitamin B6) Impurity 54 (C9H13NO4) is characterized by an amino-acid-derived structure, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C9H13NO4 |
| Molecular Weight | 199.20 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 |
| 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 91 (CAS CATO-C4X-187791)
- Pyridoxine impurity 83 (CAS CATO-C4X-187783)
- Pyridoxine-d3 HCl (CAS CATO-C4X-187720)
- Pyridoxine Impurity 63 (CAS 948-00-5)
- Pyridoxine impurity 89 (CAS CATO-C4X-187789)
- Pyridoxine Impurity 24 (CAS 76963-36-5)
- Pyridoxine /Vitamin B6 Impurity 67 (CAS CATO-C4X-187767)
- Pyridoxine impurity 93 (CAS 524-07-2)
Recommended Standards
- Adrenaline Impurity 94 (CAS CATO-C4X-184994)
- 3-Methyl-1H-pyrazolo[3,4-b]quinolin-4(9H)-one (CAS 100548-59-2)
- Epinephrine Impurity 66 (CAS CATO-C4X-184966)
- 5-Phenylnicotinic acid (CAS 10177-12-5)
- Zolmitriptan Impurity 36 (CAS CATO-C4X-135136)
- Pemafibrate Impurity 12 (CAS CATO-C4X-290312)
- Azilsartan Impurity 9 (CAS 136285-69-3)
- 4,5,5-Trimethyl-2-oxo-2,5-dihydrofuran-3-carboxylic acid (CAS 13156-11-1)
- 6,8-Dichloro-3-(3,4-dichlorobenzyl)quinazolin-4(3H)-one (CAS 618443-51-9)
- N-(2-(3-Acetyl-2-methylindolizin-1-yl)propyl)-N,N-dimethylpentan-1-aminium bromide (CAS 66902-66-7)
- (4-Aminopiperidin-1-yl)(4-ethylphenyl)methanone (CAS 1016722-73-8)
- n-(4-Bromo-2-methylphenyl)methanesulfonamide (CAS 330468-71-8)
- 3-Methyldiphenylsulfide (CAS 13865-48-0)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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