| CAS No. | 337920-65-7 |
| Molecular Formula | C21H16Cl3N3 |
| Molecular Weight | 416.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures 2-(6-Chloropyridin-3-yl)-1-[(3,4-dichlorophenyl)methyl]-5,6-dimethyl-1H-1,3-benzodiazole 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 2-(6-Chloropyridin-3-yl)-1-[(3,4-dichlorophenyl)methyl]-5,6-dimethyl-1H-1,3-benzodiazole (CAS 337920-65-7), a certified reference material (molecular formula C21H16Cl3N3, MW 416.73 g/mol) for analytical method development and quality control.
Structurally, 2-(6-Chloropyridin-3-yl)-1-[(3,4-dichlorophenyl)methyl]-5,6-dimethyl-1H-1,3-benzodiazole (C21H16Cl3N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 416.73 g/mol, it falls into the moderately-high-molecular-weight range. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
| Molecular Formula | C21H16Cl3N3 |
| Molecular Weight | 416.73 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |