2,4-Dichloro-3-methyl-6-nitrophenol
- CAS NO.：39549-27-4
- Empirical Formula: C7H5Cl2NO3
- Molecular Weight: 222.03
- EINECS: 254-502-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 02:21:17
What is 2,4-Dichloro-3-methyl-6-nitrophenol?
Description
2,4-Dichloro-3-methyl-6-nitrophenol is a hydrocarbon solvent that is used in the synthesis of nitrotoluene. It is also used as an intermediate in the production of chlorinated phenols. The chlorination can be achieved by reacting 2,4-dichloro-3-methylphenol with hydrochloric acid and chlorine gas. The reaction with hydrochloric acid produces 2,4,6-trichlorophenol and 2,4-dichlorophenol. The reaction with chlorine gas produces 2,4,5-, and 3,5-, trichlorophenols. This chemical has been widely used in the production of organic solvents such as carbon tetrachloride and nitrobenzene.
Synthesis
2,4-Dichloro-3-methyl-6-nitrophenol 2 was prepared by KOH/H2O hydrolysis of a product mixture obtained from chlorination of p-nitrotoluene in the presence of a phase transfer catalyst. A 95–99% yield of 2 based on 2,3,6-trichloro-4-nitrotoluene, 4 (major chlorination product) was achieved in >95% purity[1].
References
[1] R. RAN C. P. A Practical Synthesis of 2,4-Dichloro-3-methyl-6-nitrophenol[J]. Synthetic Communications, 1993. DOI:10.1080/00397919308013809.
Properties of 2,4-Dichloro-3-methyl-6-nitrophenol
| Melting point: | 77-78 °C |
| Boiling point: | 276.2±35.0 °C(Predicted) |
| Density | 1.587±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C |
| pka | 4.84±0.50(Predicted) |
| EPA Substance Registry System | Phenol, 2,4-dichloro-3-methyl-6-nitro- (39549-27-4) |
Safety information for 2,4-Dichloro-3-methyl-6-nitrophenol
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H317:Sensitisation, Skin H318:Serious eye damage/eye irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P272:Contaminated work clothing should not be allowed out of the workplace. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P391:Collect spillage. Hazardous to the aquatic environment P302+P352:IF ON SKIN: wash with plenty of soap and water. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. P501:Dispose of contents/container to..… |
Computed Descriptors for 2,4-Dichloro-3-methyl-6-nitrophenol
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