2,6-Dichloroquinoxaline
Agrochemicals 2025-03-02
2,6-Dichloroquinoxaline (CAS No. 2213-63-0)
1. Basic Information
- IUPAC Name: 2,6-Dichloroquinoxaline
- Synonyms:
- DCQ
- 2,6-Dichloro-1,4-diazanaphthalene
- CAS Number: 2213-63-0
- Molecular Formula: C₈H₄Cl₂N₂
- Molecular Weight: 199.04 g/mol
- Appearance: Off-white to pale yellow crystalline powder
- Odor: Slight aromatic odor
2. Physical and Chemical Properties
| Property | Value |
|---|---|
| Melting Point | 155–158°C (311–316°F) |
| Boiling Point | Sublimes at >200°C |
| Solubility | – Water: Insoluble |
| – Organic solvents: Soluble in DMF, DMSO, hot ethanol | |
| Log Pow | 2.8 (octanol/water) |
| Vapor Pressure | 0.12 mPa at 25°C |
3. Chemical Structure
Cl
|
◯-N
/ \
C C
\ /
N-◯
|
Cl
(◯ = benzene ring positions)
4. Hazards (GHS Classification)
- Acute Toxicity:
- Harmful if swallowed (H302)
- Causes skin irritation (H315)
- Environmental:
- Toxic to aquatic life (H411)
- NFPA Rating: Health 2, Flammability 1, Reactivity 0
5. Storage and Handling
- Storage:
- Keep in tightly sealed amber containers
- Store in cool, dry conditions (<25°C)
- Handling:
- Use nitrile gloves and fume hood
- Avoid dust generation
6. Applications
- Pharmaceutical Intermediate:
- Synthesis of antimalarial and antiviral compounds
- Agrochemicals:
- Precursor for fungicides (e.g., quinoxyfen)
- Material Science:
- Building block for conductive polymers
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