Home Categories Chemical Reagents 4-Chloro-2-nitrophenol
A2585112

4-Chloro-2-nitrophenol , 98% , 89-64-5

CAS NO.:89-64-5

Empirical Formula: C6H4ClNO3

Molecular Weight: 173.55

MDL number: MFCD00007113

EINECS: 201-927-5

Update time: 2022-07-08

PRODUCT Properties

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)
EPA Substance Registry System 4-Chloro-2-nitrophenol (89-64-5)

Description and 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.

Safety

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

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