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147214

Sigma-Aldrich

4-Amino-2-nitrophenol

97%

Synonym(s):

4-Hydroxy-3-nitroaniline

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About This Item

Linear Formula:
H2NC6H3(NO2)OH
CAS Number:
Molecular Weight:
154.12
Beilstein:
1368435
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

97%

mp

125-127 °C (lit.)

SMILES string

Nc1ccc(O)c(c1)[N+]([O-])=O

InChI

1S/C6H6N2O3/c7-4-1-2-6(9)5(3-4)8(10)11/h1-3,9H,7H2

InChI key

WHODQVWERNSQEO-UHFFFAOYSA-N

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General description

4-Amino-2-nitrophenol is the major metabolite of 2,4-dinitrophenol. It is commonly used as semipermanent (nonoxidative) hair colorant and toner in permanent (oxidative) hair dye products.

Application

4-Amino-2-nitrophenol was used in determination of aminonitrophenols in hair dyes by differential pulse voltammetry and HPLC with electrochemical detection.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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