Fenbufen

Fenbufen
Clinical data
AHFS/Drugs.com	International Drug Names
Routes of; administration	Oral
ATC code	M01AE05 (WHO) ;
Legal status
Legal status	UK: POM (Prescription only);
Identifiers
	IUPAC name 4-(4-Biphenylyl)-4-oxobutanoic acid; or; 4-Oxo-4-(4-phenylphenyl)butanoic acid;
CAS Number	36330-85-5 ;
PubChem CID	3335;
DrugBank	DB08981 ;
ChemSpider	3218 ;
UNII	9815R1WR9B;
KEGG	D01344 ;
ChEBI	CHEBI:31599 ;
ChEMBL	ChEMBL277522 ;
CompTox Dashboard (EPA)	DTXSID9023043 ;
ECHA InfoCard	100.048.148
Chemical and physical data
Formula	C16H14O3
Molar mass	254.285 g·mol−1
3D model (JSmol)	Interactive image;
Melting point	186 °C (367 °F)
	SMILES O=C(O)CCC(=O)c2ccc(c1ccccc1)cc2;
	InChI InChI=1S/C16H14O3/c17-15(10-11-16(18)19)14-8-6-13(7-9-14)12-4-2-1-3-5-12/h1-9H,10-11H2,(H,18,19) ; Key:ZPAKPRAICRBAOD-UHFFFAOYSA-N ;
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Fenbufen is a nonsteroidal anti-inflammatory drug used to treat pain.

Fenbufen is a member of the propionic acid derivatives class of drugs.

It was introduced by American Cyanamid under the trade name Lederfen in the 1980s. Due to liver toxicity, it was withdrawn from markets in the developed world in 2010.

As of 2015 it was available in Taiwan and Thailand under several brand names.