Peroxybenzoic acid is an organic compound with the formula C₆H₅CO₃H. It is the simplest aryl peroxy acid. It may be synthesized from benzoic acid and hydrogen peroxide,^[3] or by the treatment of benzoyl peroxide with sodium methoxide, followed by acidification.^[4]

Quick Facts Names, Identifiers ...

Peroxybenzoic acid

Names
Preferred IUPAC name Benzenecarboperoxoic acid[1]
Systematic IUPAC name Oxobenzoic acid Oxidobenzoic acid
Other names Peroxybenzoic acid Perbenzoic acid Benzoperoxoic acid Hydroxy benzoate Benzoyl hydroperoxide
Identifiers
CAS Number	93-59-4 Y
3D model (JSmol)	Interactive image
ChemSpider	456283 N
ECHA InfoCard	100.002.056
EC Number	202-260-2
MeSH	C017611
PubChem CID	523077
UNII	C0EZ97V99I Y
CompTox Dashboard (EPA)	DTXSID10239223
InChI InChI=1S/C7H6O3/c8-7(10-9)6-4-2-1-3-5-6/h1-5,9H N Key: XCRBXWCUXJNEFX-UHFFFAOYSA-N N InChI=1/C7H6O3/c8-7(10-9)6-4-2-1-3-5-6/h1-5,9H Key: XCRBXWCUXJNEFX-UHFFFAOYAA
SMILES OOC(=O)c1ccccc1
Properties
Chemical formula	C7H6O3
Molar mass	138.12 g/mol
Melting point	41 to 42 °C (106 to 108 °F; 314 to 315 K)[2]
Acidity (pKa)	7.8[2]
Related compounds
Related compounds	m-Chloroperoxybenzoic acid Hydrogen peroxide Benzoic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Close

Like other peroxyacids, it may be used to generate epoxides, such as styrene oxide from styrene:^[5]