Monohydroxybenzoic acid may refer to any of three isomeric phenolic acids:
Salicylic acid (2-hydroxybenzoic acid, o-hydroxybenzoic acid) 3-Hydroxybenzoic acid (m-hydroxybenzoic acid) 4-Hydroxybenzoic acid (p-hydroxybenzoic acid) Monohydroxybenzoic acids can be degraded by microbes.
References
External links Media related to Monohydroxybenzoic acids at Wikimedia Commons