4-Amino-2-nitrophenol

4-Amino-2-nitrophenol Basic information
Product Name:4-Amino-2-nitrophenol
Synonyms:5-Amino-2-hydroxynitrobenzene;4-HYDROXY-3-NITROANILINE;4-AMINO-2-NITROPHENOL;4-AMINO-2-NITROPHENOL 99%;2-nitro-4-aminophenol;3-nitro-4-hydroxyaniline;4-amino-2-nitrofenol;c.i.76555
CAS:119-34-6
MF:C6H6N2O3
MW:154.12
EINECS:204-316-1
Product Categories:Intermediates of Dyes and Pigments;Aromatic Phenols
Mol File:119-34-6.mol
4-Amino-2-nitrophenol Structure
4-Amino-2-nitrophenol Chemical Properties
Melting point 125-127 °C(lit.)
Boiling point 322.46°C (rough estimate)
density 1.3617 (estimate)
refractive index 1.6890 (rough estimate)
storage temp. 2-8°C(protect from light)
form neat
Colour Index 76555
pka7.90±0.14(Predicted)
color Orange to Brown to Dark red
Water Solubility <0.01 g/100 mL at 21 ºC
BRN 1368435
CAS DataBase Reference119-34-6(CAS DataBase Reference)
IARC3 (Vol. 16, Sup 7) 1987
EPA Substance Registry System4-Amino-2-nitrophenol (119-34-6)
Safety Information
Hazard Codes Xn,T
Risk Statements 22-36/37/38-45
Safety Statements 22-24/25-37/39-26-53-45
RIDADR UN 2811 6.1/PG 3
WGK Germany 3
RTECS SJ6303000
TSCA Yes
HS Code 29222990
Hazardous Substances Data119-34-6(Hazardous Substances Data)
MSDS Information
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4-Amino-2-nitrophenol English
SigmaAldrich English
ACROS English
4-Amino-2-nitrophenol Usage And Synthesis
Chemical PropertiesDARK BROWN FINE CRYSTALLINE POWDER
Chemical Properties4-Amino-2-nitrophenol is a dark red crystalline or reddish-purple solid.
Uses4-Amino-2-nitrophenol has been used in dyeing human hair and animal fur. The typical concentration in the “semipermanent” hair dyes was estimated to be on the order of 0.1–1.0%.
Uses4-Amino-2-nitrophenol was used in determination of aminonitrophenols in hair dyes by differential pulse voltammetry and HPLC with electrochemical detection. It is commonly used as semipermanent (nonoxidative) hair colorant and toner in permanent (oxidative) hair dye products.
DefinitionChEBI: 4-Amino-2-nitrophenol is a member of 2-nitrophenols.
General DescriptionDark red plates, needles or reddish-purple powder. Melting point 125-127°C.
Air & Water ReactionsSensitive to oxidation upon prolonged exposure to air. Insoluble in water.
Reactivity Profile4-Amino-2-nitrophenol may react with strong oxidizing agents, strong bases, acid chlorides and acid anhydrides .
Fire HazardFlash point data for 4-Amino-2-nitrophenol are not available. 4-Amino-2-nitrophenol is probably combustible.
Safety ProfileSuspected carcinogen with experimental carcinogenic data. Very poisonous by intraperitoneal route. Moderately toxic by ingestion. A severe eye heated to decomposition it emits toxic fumes of NOx.
Potential ExposureIn dye formulation for furs and hair
CarcinogenicityUnder the conditions of the bioassay, the compound was carcinogenic in male rats inducing transitional cell carcinomas of the urinary bladder (controls 0/15, lowdose 0/46, high dose 11/39). The same tumor was also observed in three dosed female rats and may have been associated with the administration of the chemical. No evidence of carcinogenic activity was found in the mice.
ShippingUN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3143 Dyes, solid, toxic, n.o.s. or Dye intermediates, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required
IncompatibilitiesIncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. It is unknown if this nitro compound is explosive; some are flammable and explosive, and the contact with alkali increases thermal sensitivity of these materials.
4-Amino-2-nitrophenol Preparation Products And Raw materials
Raw materials4-Amino-3-nitrophenol-->4-Aminophenol
N,N-BIS(2-HYDROXYETHYL)-2-AMINO-5-NITROPHENOL Methyl 3,5-dinitrosalicylate Iron, complexes with diazotized 2-amino-5-nitrobenzenesulfonic acid coupled with diazotized 2-amino-4-nitrophenol and resorcinol N,0-DI(2-HYDROXYETHYL-2-AMINO-5-NITROPHENOL 2,4-DINITROPHENETOLE Picramic acid BIS(2,4-DINITROPHENYL) OXALATE 2-[(4-AMINO-2-NITROPHENOL)-AMINO] ETHANOL (HC RED MORDANT BROWN 4 2-CHLORO-4,6-DINITROPHENOL HC Orange 1 3-(2,4-DINITROPHENOXY)PYRIDINE N,O-Di(2-hydroxyethyl)-2-amino-5-nitrophenol,N,O-di(hydroxyethyl)-2-amino-5-nitrophenol Sodium picramate 6-Chloro-2-(N-Ethyl)Amino-4-Nitrophenol 5,7-DINITROQUINOLIN-8-OL MORDANT BROWN 48 2-[bis(2-hydroxyethyl)amino]-5-nitrophenol

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