Pyridoxine Impurity 25 HCl CAS 90005-85-9
| CAS No. | 90005-85-9 |
| Molecular Formula | C8H9NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Pyridoxine Impurity 25 HCl (CAS 90005-85-9), a pharmacopoeial impurity reference standard (molecular formula C8H9NO3HCl, MW 203.62 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Pyridoxine Impurity 25 HCl (C8H9NO3HCl) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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).
CATO manufactures Pyridoxine Impurity 25 HCl 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 | C8H9NO3 HCl |
| Molecular Weight | 203.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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 methanol, ethanol, 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 |
| CAS Registry Year (est.) | 1982 |
| 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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- 4-(3-Bromophenyl)-2-methylbut-3-yn-2-ol (CAS 76347-61-0)
- 2-(Phenylthio)thiophene (CAS 16718-12-0)
- Cyclopropanesulfinic acid (CAS 761365-62-2)
- 2-(2-Ethoxypyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352509-39-7)
- 2-Bromo-5-fluoro-3-(trifluoromethyl)benzoic acid (CAS 2090465-60-2)
- Spiro[chromane-2,1'-cyclobutan]-4-one (CAS 934554-40-2)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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