What is "hydroxybenzoic acid"

n. (context organic compound English) Any of three isomeric phenolic derivatives of benzoic acid.

n. a crystalline derivative of benzoic acid

Hydroxybenzoic acid may refer to several related chemical compounds:

• 2-Hydroxybenzoic acid (salicylic acid, o-hydroxybenzoic acid)
• 3-Hydroxybenzoic acid (m-hydroxybenzoic acid)
• 4-Hydroxybenzoic acid (p-hydroxybenzoic acid)