2,3-Dichloro-1,4-naphthoquinone
Pharmaceutical Materials 2025-03-02
CAS Number: 117-80-6
Molecular Formula: C10H4Cl2O2
Molecular Weight: 227.04
Appearance: Yellow crystalline powder
Melting Point: 194-197°C
Boiling Point: 275°C (2 mmHg)
Usage: Used as a pesticide, dye intermediate, and herbicide raw material.
| Category | Details |
|---|---|
| Basic Information | |
| Chemical Name | 2.3-Dichloro-1.4-naphthoquinone |
| CAS Number | 117-80-6 |
| EINECS Number | 204-210-5 |
| Molecular Formula | C10H4Cl2O2 |
| Molecular Weight | 227.04 g/mol |
| Synonyms | 2.3-Dichloro-1.4-naphthalenedione; Dichlon; Dichlone; 2.3-Dichloro-1.4-naphthoquinone (dichlone); PHYGON PASTE(R); etc. |
| Physical Properties | |
| Appearance | Yellow crystalline powder or needles, odorless |
| Melting Point | 194-197 °C |
| Boiling Point | 275 °C (2 mmHg) |
| Density | 1.54 g/cm³ |
| Refractive Index | 1.634 (estimate) |
| Solubility | Insoluble in water, slightly soluble in ethanol, ether, and benzene; soluble in o-xylene (4%) and o-dichlorobenzene |
| Chemical Properties | |
| Stability | Stable under normal conditions, but avoid contact with strong oxidants and bases |
| Reactivity | May react with acids and bases, decomposing in alkaline conditions |
| Safety Information | |
| Risk Phrases | R22: Harmful if swallowed; R36/38: Irritating to eyes and skin; R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment |
| Safety Phrases | S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; S60: This material and/or its container must be disposed of as hazardous waste; S61: Avoid release to the environment. Refer to special instructions/safety data sheets |
| Applications | Used as an intermediate in the production of pesticides, dyes, and pharmaceuticals. It also has applications in the synthesis of other organic compounds. |
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