2-Cyano-3,5-dichloropyridine CAS 85331-33-5
| CAS No. | 85331-33-5 |
| Molecular Formula | C6H2Cl2N2 |
| Molecular Weight | 173.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Cyano-3,5-dichloropyridine (CAS 85331-33-5), molecular formula C6H2Cl2N2 and molecular weight 173.00 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H2Cl2N2, 2-Cyano-3,5-dichloropyridine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 173.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-Cyano-3,5-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 | C6H2Cl2N2 |
| Molecular Weight | 173.00 g/mol |
| Appearance | Off-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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2,6-Dichloroisonicotinonitrile (CAS 32710-65-9)
- 3,6-Dichloro-4-ethynylpyridazine (CAS 2228894-69-5)
- 2,6-Dichloro-3-cyanopyridine (CAS 40381-90-6)
- 4,6-Dichloropicolinonitrile (CAS 40314-71-4)
- N-(2-(hydroxymethyl)-4-nitrophenyl)-4-methylbenzenesulfonamide (CAS 886493-59-0)
- 4-methyl-1-(oxolane-2-carbonyl)piperidine (CAS 560090-38-2)
- 2-(3-Fluorophenyl)-5-methyloxazole-4-carbonyl chloride (CAS 61152-05-4)
- 3-Amino-2-(trifluoromethyl)benzonitrile (CAS 1369869-39-5)
- 7-Methyl-4-(pyridin-2-yl)isoxazolo[3,4-d]pyridazine (CAS 400089-31-8)
- 5-Methyl-4-phenyl-2-(thiophen-2-yl)thiazole (CAS 113214-30-5)
- 2-{3-[(5-Chloro-1,2,4-thiadiazol-3-yl)sulfanyl]propyl}-2,3-dihydro-1h-isoindole-1,3-dione (CAS 1326815-16-0)
- 2,3-Dichloro-4,6-difluoroaniline (CAS 1803717-55-6)
- [1,1’-Biphenyl]-3-sulfonyl Chloride (CAS 65685-01-0)
- Liraglutide Impurity 21 TFA Salt (CAS CATO-C4X-199221)
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