2,3-Dihydroxybenzoic acid is a natural phenol found in Phyllanthus acidus and in the aquatic fern Salvinia molesta. It is a dihydroxybenzoic acid, a type of organic compound. The colorless solid occurs naturally, being formed via the shikimate pathway. It is incorporated into various siderophores, which are molecules that strongly complex iron ions for absorption into bacteria. 2,3-DHB consists of a catechol group, which upon deprotonation binds iron centers very strongly, and the carboxylic acid group by which the ring attaches to various scaffolds via amide linkages. A famous high affinity siderophore is enterochelin, which contains three dihydroxybenzoyl substituents linked to the depsitripeptide of serine. It is a potentially useful iron-chelating drug. 2,3-Dihydroxybenzoic acid is also a product of human aspirin metabolism.
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Chemistry educational resource for 2,3-Dihydroxybenzoic acid (standard InChIKey GLDQAMYCGOIJDV-UHFFFAOYSA-N). 2,3-Dihydroxybenzoic acid (IUPAC Name); 2,3-Dihydroxy-benzoic acid; dihydroxybenzoic acid. Follow the page link to go to the compound page on the Learn Chemistry wiki.