4-Nitrophenol

4-Nitrophenol
Names
	Preferred IUPAC name 4-Nitrophenol
	Other names p-Nitrophenol; para-Nitrophenol; 4-Hydroxynitrobenzene; PNP
Identifiers
CAS Number	100-02-7 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEBI	CHEBI:16836 ;
ChEMBL	ChEMBL14130 ;
ChemSpider	955 ;
DrugBank	DB04417 ;
ECHA InfoCard	100.002.556
KEGG	C00870 ;
PubChem CID	980;
UNII	Y92ZL45L4R ;
CompTox Dashboard (EPA)	DTXSID0021834 ;
	InChI InChI=1S/C6H5NO3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H Key: BTJIUGUIPKRLHP-UHFFFAOYSA-N ; InChI=1/C6H5NO3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H Key: BTJIUGUIPKRLHP-UHFFFAOYAP;
	SMILES O=[N+]([O-])c1ccc(O)cc1; c1cc(ccc1[N+](=O)[O-])O;
Properties
Chemical formula	C6H5NO3
Molar mass	139.110 g·mol−1
Appearance	Colourless to pale yellow crystals
Melting point	113 to 114 °C (235 to 237 °F; 386 to 387 K)
Boiling point	279 °C (534 °F; 552 K)
Solubility in water	10 g/L (15 °C); 11.6 g/L (20 °C); 16 g/L (25 °C)
Acidity (pKa)	7.15 (in water),
Magnetic susceptibility (χ)	−69.5·10−6 cm3/mol
	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

4-Nitrophenol (also called p-nitrophenol or 4-hydroxynitrobenzene) is a phenolic compound that has a nitro group at the opposite position of the hydroxyl group on the benzene ring.