Pyridoxine Impurity 13 CAS CATO-C4X-187713
| CAS No. | CATO-C4X-187713 |
| Molecular Formula | C14H21NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Pyridoxine Impurity 13 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Pyridoxine Impurity 13 (CAS CATO-C4X-187713), a pharmacopoeial impurity reference standard (molecular formula C14H21NO3HCl, MW 287.78 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Pyridoxine Impurity 13 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.78 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C14H21NO3 HCl |
| Molecular Weight | 287.78 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Pyridoxine Standards
- Pyridoxine EP Impurity A hydrochloride (CAS 1006-21-9)
- Pyridoxine /Vitamin B6 Impurity 63 HCl (CAS 102694-13-3(free base))
- Pyridoxine dicaprylate (CAS 106483-04-9)
- Pyridoxine N-Oxide HCl (CAS 112507-12-7)
- Pyridoxine Impurity 27 (CAS 116169-14-3)
- Pyridoxine-d3 Hydrochloride (CAS 1189921-12-7)
- Pyridoxine Impurity 6 (CAS 1385767-85-0)
- Pyridoxine Impurity 7 (CAS 1385767-86-1)
Recommended Standards
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- Cefotiam Impurity 36 (CAS 95761-91-4)
- Tamsulosin Impurity 62 (CAS 54646-18-3)
- 4-(4-Chlorophenyl)oxan-4-amine (CAS 1017450-84-8)
- Cycloheptylhydrazine hydrochloride (CAS 79201-43-7)
- 4-((2,6-Dichlorophenyl)amino)thiophene-3-carboxylic acid (CAS 16562-98-4)
- 2-[1-(2-Hydroxyethyl)-4-oxo-1,4-dihydro-5H-pyrazolo[3,4-d]pyrimidin-5-yl]acetamide (CAS 899971-27-8)
- 4,5-Bis(chloromethyl)-1-phenyl-1H-1,2,3-triazole (CAS 104503-32-4)
- 1-(4-Nitrophenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 834894-65-4)
- D-Tyr10-Tirzepatide (CAS CATO-CPTD788922)
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