3-Hydroxybenzoic acid

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3-Hydroxybenzoic acid
3-hydroxybenzoic acid.svg
CAS number 99-06-9 YesY
PubChem 7420
ChemSpider 7142 YesY
ChEBI CHEBI:30764 YesY
Jmol-3D images Image 1
Image 2
Molecular formula C7H6O3
Molar mass 138.12 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

3-Hydroxybenzoic acid is a monohydroxybenzoic acid.

Natural occurrences[edit]

3-Hydroxybenzoic acid is a component of castoreum, the exudate from the castor sacs of the mature North American beaver (Castor canadensis) and the European beaver (Castor fiber), used in perfumery.

It can also be formed by a Pseudomonas species from 3-chlorobenzoic acid.[1]


  1. ^ H.W. Johnston, G.G. Briggs and M. Alexander (1972). "Metabolism of 3-chlorobenzoic acid by a pseudomonad". Soil Biology and Biochemistry 4 (2): 187–190. doi:10.1016/0038-0717(72)90010-7.