2,4-Dichloropyridine CAS 26452-80-2
| CAS No. | 26452-80-2 |
| Molecular Formula | C5H3Cl2N |
| Molecular Weight | 147.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,4-Dichloropyridine is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,4-Dichloropyridine (CAS 26452-80-2), molecular formula C5H3Cl2N and molecular weight 147.99 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H3Cl2N, 2,4-Dichloropyridine contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 147.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 2,4-Dichloropyridine 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.
Physical & Chemical Properties
| Molecular Formula | C5H3Cl2N |
| Molecular Weight | 147.99 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloropyridine Standards
- 3,4-Dichloropyridine (CAS 55934-00-4)
- 2,3-Dichloropyridine (CAS 2402-77-9)
- 2,6-Dichloropyridine (CAS 2402-78-0)
- 2,5-Dichloropyridine (CAS 16110-09-1)
- 2,3-Dichloropyridine-2-13C (CAS 1644451-39-7)
- 2,4-Dichloropyridine 1-oxide (CAS 13602-59-0)
- 2,3-Dichloropyridine1-oxide (CAS 53976-65-1)
- 2,5-Dichloropyridine 1-oxide (CAS 53976-62-8)
Recommended Standards
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- 1,2-Bis(4-ethynylphenyl)diazene (CAS 92792-15-9)
- Avatrombopag impurity 133 (CAS CATO-C4X-2234133)
- tert-butyl N-(2-oxocycloheptyl)carbamate (CAS 1461709-06-7)
- N-(tert-Butyl)-4-isothiocyanatobenzenesulfonamide (CAS 886631-84-1)
- Dilinoleic Acid (CAS 47818-40-6)
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- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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