2-Phenylphenol

2-Phenylphenol
Names
	Preferred IUPAC name [1,1′-Biphenyl]-2-ol
	Other names 2-Phenylphenol; 2-Biphenylol; o-Phenylphenol; Biphenylol; 2-Hydroxybiphenyl; Orthophenyl phenol; o-Xenol; Orthoxenol;
Identifiers
CAS Number	90-43-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:17043;
ChEMBL	ChEMBL108829 ;
ChemSpider	13839012 ;
ECHA InfoCard	100.001.812
EC Number	201-993-5;
E number	E231 (preservatives)
KEGG	D08367 ;
PubChem CID	7017;
RTECS number	DV5775000;
UNII	D343Z75HT8 ;
UN number	3077
CompTox Dashboard (EPA)	DTXSID2021151 ;
	InChI InChI=1S/C12H10O/c13-12-9-5-4-8-11(12)10-6-2-1-3-7-10/h1-9,13H Key: LLEMOWNGBBNAJR-UHFFFAOYSA-N ; InChI=1/C12H10O/c13-12-9-5-4-8-11(12)10-6-2-1-3-7-10/h1-9,13H Key: LLEMOWNGBBNAJR-UHFFFAOYAF;
	SMILES Oc2ccccc2c1ccccc1;
Properties
Chemical formula	C12H10O
Molar mass	170.211 g·mol−1
Density	1.293 g/cm3
Melting point	55.5 to 57.5 °C (131.9 to 135.5 °F; 328.6 to 330.6 K)
Boiling point	280 to 284 °C (536 to 543 °F; 553 to 557 K)
Pharmacology
ATC code	D08AE06 (WHO)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335, H400
Precautionary statements	P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, 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-Phenylphenol, or o-phenylphenol, is an organic compound with the formula C₆H₅−C₆H₄OH. It is one of three isomers of monohydroxylated biphenyl. It is a white solid. It is a biocide used as a preservative with E number E231 and under the trade names Dowicide, Torsite, Fungal, Preventol, Nipacide and many others.