4,8-Dichloro-3-methylquinoline CAS 39593-10-7
| CAS No. | 39593-10-7 |
| Molecular Formula | C10H7Cl2N |
| Molecular Weight | 212.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,8-Dichloro-3-methylquinoline (CAS 39593-10-7) is a high-purity analytical reference standard with the molecular formula C10H7Cl2N and a molecular weight of 212.08 g/mol.
Structurally, 4,8-Dichloro-3-methylquinoline (C10H7Cl2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 212.08 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 4,8-Dichloro-3-methylquinoline 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 | C10H7Cl2N |
| Molecular Weight | 212.08 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 chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 2,4-Dichloro-6-methylquinoline (CAS 102878-18-2)
- 2,4-Dichloro-7-methylquinoline (CAS 102878-19-3)
- 2,4-Dichloro-8-methylquinoline (CAS 102878-20-6)
- 2,8-Dichloro-6-methylquinoline (CAS 1195523-25-1)
- 2,7-Dichloro-8-methylquinoline (CAS 1215205-97-2)
- 2,7-Dichloro-3-methylquinoline (CAS 132118-46-8)
- 2,8-Dichloro-3-methylquinoline (CAS 1339432-40-4)
- 2,5-Dichloro-8-methylquinoline (CAS 1340414-32-5)
Recommended Standards
- 4,8-Dichloro-2-methylquinoline (CAS 75896-69-4)
- 4,8-Dichloro-6-methylquinoline (CAS 948292-39-5)
- 4,7-Dichloro-2-methylquinoline (CAS 50593-69-6)
- 4-Chloro-2-(chloromethyl)quinoline (CAS 303224-88-6)
- N-(5-Methyl-1,3-thiazol-2-yl)piperidine-4-carboxamide hydrochloride (CAS 1351597-38-0)
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