Clethodim Impurity 21 Chloride CAS 194805-30-6
| CAS No. | 194805-30-6 |
| Molecular Formula | C9H16ClN4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Clethodim Impurity 21 Chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Clethodim Impurity 21 Chloride (CAS 194805-30-6), a pharmacopoeial impurity reference standard (molecular formula C9H16ClN4Cl, MW 251.16 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Clethodim Impurity 21 Chloride (C9H16ClN4Cl) is characterized by a nitrile group, 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).
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 | C9H16ClN4 Cl |
| Molecular Weight | 251.16 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Why CATO?
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