4-CHLORO-2-NITROPHENOL
- CAS No.
- 89-64-5
- Chemical Name:
- 4-CHLORO-2-NITROPHENOL
- Synonyms
- AKOS BBS-00004667;4-CHLORO-2-NITROPHEN;o-nitro-p-chorophenol;4-chloro-2-nitro-pheno;O-NITRO-P-CHLOROPHENOL;2-NITRO-4-CHLOROPHENOL;4-CHLORO-2-NITROPHENOL;Phenol,4-chloro-2-nitro-;4-chloro-2-nitrophenolate;4-Chloro-2-nitrophenol,98%
- CBNumber:
- CB9226357
- Molecular Formula:
- C6H4ClNO3
- Molecular Weight:
- 173.55
- MDL Number:
- MFCD00007113
- MOL File:
- 89-64-5.mol
| Melting point | 85-87 °C(lit.) |
|---|---|
| Boiling point | 242.5±20.0 °C(Predicted) |
| Density | 1.4914 (rough estimate) |
| refractive index | 1.5810 (estimate) |
| solubility | dioxane: soluble0.5g/5mL, clear, faintly yellow to yellow |
| pka | pK1: 6.48 (25°C) |
| form | powder to crystal |
| color | Light yellow to Yellow to Orange |
| BRN | 2048031 |
| CAS DataBase Reference | 89-64-5(CAS DataBase Reference) |
| FDA UNII | 438LQ62WNH |
| EPA Substance Registry System | 4-Chloro-2-nitrophenol (89-64-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 36/37/38-20/21/22 | |||||||||
| Safety Statements | 26-36-36/37/39 | |||||||||
| RIDADR | 2811 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29089990 | |||||||||
| NFPA 704 |
|
4-CHLORO-2-NITROPHENOL Chemical Properties,Uses,Production
Description
4-Chloro-2-nitrophenol, is a kind of chloronitrophenols (CNPs), being widely used in the synthesis of dyes, drugs and pesticides. Furthermore, it can be used to produce 2-Amino-4-chloro-phenol.It has become a major group of environmental pollutants. 4-Chloro-2-nitrophenol has been detected in various industrial effluents. Therefore, it has also been used as a model compound for evaluation of biodegradation strategy using microbes.
Sources
https://microbialcellfactories.biomedcentral.com/articles/10.1186/1475-2859-11-150
https://www.sciencedirect.com/science/article/pii/S0304389407009570
https://www.lookchem.com/4-Chloro-2-nitrophenol/
Chemical Properties
yellow powder
Uses
Reduction of 4-Chloro-2-nitrophenol gives 2-amino-4- chlorophenol [95-85-2], and chlorination yields 2,4-dichloro-6-nitrophenol [609-89-2], which is reduced to 2-amino-4,6-dichlorophenol [527-62-8]. These substituted aminophenols are members of a large class of diazo components used for hydroxyazo dyes, which are important for wool and polyamide when converted to their chromium complexes. For the amine derived from the methyl ether of 4-Chloro-2-nitrophenol, 4- chloro-o-anisidine [93-50-5], the preferred route is methoxylation of 2,5-dichloronitrobenzene followed by reduction. 2-amino-4-chlorophenol reacts with phosgene to give 5- chlorobenzoxolinone which nitrates to the 6-nitro compound; the latter undergoes alkaline hydrolysis to 2-amino-4- chloro-5-nitrophenol.
Production Methods
2,5-Dichloronitrobenzene is hydrolyzed with 8 % aqueous sodium hydroxide at 120 – 130 ℃ under pressure.
4-CHLORO-2-NITROPHENOL Preparation Products And Raw materials
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