Imidacloprid impurity 3 CAS CATO-C4X-25413
| CAS No. | CATO-C4X-25413 |
| Molecular Formula | C17H21ClN8O2 |
| Molecular Weight | 404.85 g/mol |
| 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 Imidacloprid impurity 3 (CAS CATO-C4X-25413), a pharmacopoeial impurity reference standard (molecular formula C17H21ClN8O2, MW 404.85 g/mol) used for the identification and quantification of trace impurities in APIs.
Imidacloprid impurity 3 (C17H21ClN8O2) contains a steroid 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H21ClN8O2 |
| Molecular Weight | 404.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 8 |
Related Imidacloprid Standards
- Imidacloprid impurity 4 (CAS CATO-C4X-25414)
- Imidacloprid Impurity 1 (CAS 105828-41-9)
- Imidacloprid EP Impurity C (CAS CATO-C4X-25412)
- Imidacloprid EP Impurity G (CAS 135769-74-3)
- Imidacloprid impurity 5 (CAS CATO-C4X-25415)
- 5-OH-imidacloprid-13C-15N2 (CAS CATO-CCPD102480)
- Imidacloprid-d4 (CAS 1015855-75-0)
- Imidacloprid (CAS 138261-41-3)
Recommended Standards
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- 2-Chloro-6-(4-methyl-1H-pyrazol-1-yl)pyridine (CAS 1289002-58-9)
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- 2-Chloro-5,6,7,8,9,10-hexahydrocyclohepta[b]indole-6-carboxamide (CAS 371219-74-8)
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- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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