Pyridoxin impurity 70 CAS CATO-C4X-187770
| CAS No. | CATO-C4X-187770 |
| Molecular Formula | C16H20N2O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pyridoxin impurity 70 (C16H20N2O5HCl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 Pyridoxin impurity 70 (CAS CATO-C4X-187770), a pharmacopoeial impurity reference standard (molecular formula C16H20N2O5HCl, MW 356.80 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 | 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 Pyridoxin Standards
Recommended Standards
- Desmopressin Impurity 47 (CAS CATO-C4X-221547)
- Cephalexin Impurity 27 (CAS CATO-C4X-126127)
- Empagliflozin impurity 232 (CAS CATO-C4X-1065232)
- 1-(4-(2-Cyanopropan-2-yl)phenyl)-4-methoxy-2-oxo-1,2,5,6-tetrahydropyridine-3-carbonitrile (CAS 1236409-68-9)
- N-(4-Ethylphenyl)-2-[4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepin-2-yl]acetamide (CAS 1775354-06-7)
- 1-[4-(1,3-benzoxazol-2-yl)piperidin-1-yl]-2-chloroethan-1-one (CAS 851288-56-7)
- 7-Chloro-N-(4-iodophenyl)quinazolin-4-amine (CAS 477856-38-5)
- Cinacalcet Impurity 25 (CAS 166947-09-7)
- 1-(2-Hydroxy-4,6-dimethoxyphenyl)-3-phenylpropan-1-one (CAS 3791-76-2)
- endo-Arg30-Semaglutide (CAS CATO-C4X-2226281)
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