2-Aminophenol

2-Aminophenol
Names
	Preferred IUPAC name 2-Aminophenol
	Other names o-Aminophenol; ortho-Aminophenol; 2-Hydroxyaniline; 2-Amino-1-hydroxybenzene
Identifiers
CAS Number	95-55-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:18112 ;
ChEMBL	ChEMBL28319 ;
ChemSpider	5596 ;
DrugBank	DB01726 ;
ECHA InfoCard	100.002.211
EC Number	202-431-1;
KEGG	C01987 ;
PubChem CID	5801;
RTECS number	SJ4950000;
UNII	23RH73DZ65 ;
UN number	2512
CompTox Dashboard (EPA)	DTXSID8024498 ;
	InChI InChI=1S/C6H7NO/c7-5-3-1-2-4-6(5)8/h1-4,8H,7H2 Key: CDAWCLOXVUBKRW-UHFFFAOYSA-N ; InChI=1/C6H7NO/c7-5-3-1-2-4-6(5)8/h1-4,8H,7H2 Key: CDAWCLOXVUBKRW-UHFFFAOYAP;
	SMILES Oc1ccccc1N;
Properties
Chemical formula	C6H7NO
Molar mass	109.13 g/mol
Appearance	White orthorhombic pyramidal needles
Density	1.328 g/cm3
Melting point	174 °C (345 °F; 447 K)
Solubility in water	slightly soluble in cold water, soluble in hot water
Acidity (pKa)	4.78 (amino; 20 °C, H2O); 9.97 (phenol; 20 °C, H2O);
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H332, H341
Precautionary statements	P201, P202, P261, P264, P270, P271, P281, P301+P312, P304+P312, P304+P340, P308+P313, P312, P330, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2-Aminophenol is an organic compound with the formula C₆H₇NO. Along with its isomer 4-aminophenol, it is an amphoteric molecule and a reducing agent. It is a useful reagent for the synthesis of dyes and heterocyclic compounds. Reflecting its slight hydrophilic character, white powder is moderately soluble in alcohols and can be recrystallized from hot water.