Pyridoxine Impurity 65 DiHCl CAS CATO-C4X-187765
| CAS No. | CATO-C4X-187765 |
| Molecular Formula | C16H20N2O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Pyridoxine Impurity 65 DiHCl 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.
CATO supplies Pyridoxine Impurity 65 DiHCl (CAS CATO-C4X-187765), a pharmacopoeial impurity reference standard (molecular formula C16H20N2O5HCl, MW 356.80 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Pyridoxine Impurity 65 DiHCl (C16H20N2O5HCl) is characterized by a flavonoid core, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C16H20N2O5 2*HCl |
| Molecular Weight | 356.80 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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
- Tofacitinib Impurity 34 (Mixture of Diastereomers) (CAS 344418-92-4)
- Edoxaban impurity 130 (CAS CATO-C4X-1063130)
- Bisoprolol Impurity 113 (CAS CATO-C4X-1247113)
- 2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1220219-11-3)
- Ethyl (4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)carbamate (CAS 941974-69-2)
- 2-Amino-3-(imidazo[1,2-a]pyridin-2-yl)propan-1-ol (CAS 1342283-10-6)
- (2e,4e)-5-[(1r,7s,8r,9r)-7-hydroxy-4,9-dimethyl-11-oxo-10-oxatricyclo[6.3.2.01,7]tridec-3-en-9-yl]-2-methyl-2,4-pentadienoic Acid 82508-37-0 (CAS 82508-37-0)
- Colimycin (CAS 30387-39-4)
- 4-{[(E)-2-[3-(2,6-dichlorophenyl)-4-(methoxycarbonyl)-1,2-oxazol-5-yl]ethenyl]amino}benzoic acid (CAS 338394-43-7)
- Atrial Natriuretic Peptide (ANP)(1-28) Alpha (Human, Ovine, Canine) (CAS 91917-63-4)
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