Any member of the class of hydroxybenzoic acids carrying two phenolic hydroxy groups on the benzene ring and its derivatives.
| Member | Definition | Role |
|---|
| 2,3-dihydroxybenzoic acid | A dihydroxybenzoic acid that is benzoic acid substituted by hydroxy groups at positions 2 and 3. It occurs naturally in Phyllanthus acidus and in the aquatic fern Salvinia molesta. | 2,3-dihydroxybenzoic acid |
| 2,5-dihydroxybenzoic acid | A dihydroxybenzoic acid having the two hydroxy groups at the 2- and 5-positions. | 2,5-dihydroxybenzoic acid |
| 3,5-dimethylorsellinic acid | A member of the class of dihydroxybenzoic acids that is o-orsellinic acid carrying two additional methyl substituents at positions 3 and 5. | 3,5-dimethylorsellinic acid |
| alpha-resorcylic acid | A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 5. | 3,5-dihydroxybenzoic acid |
| cannabidiolic acid | A dihydroxybenzoic acid that is olivetolic acid in which the hydrogen at position 3 is substituted by a 3-p-mentha-1,8-dien-3-yl (limonene) group. | cannabidiolic acid |
| cannabigerolic acid | A dihydroxybenzoic acid that is olivetolic acid in which the hydrogen at position 3 is substituted by a geranyl group. A biosynthetic precursor to Delta(9)-tetrahydrocannabinol, the principal psychoactive constituent of the cannabis plant. | cannabigerolic acid |
| gamma-resorcylic acid | A dihydroxybenzoic acid having the two hydroxy groups at the C-2 and C-6 positions. | 2,6-dihydroxybenzoic acid |
| orsellinic acid | A dihydroxybenzoic acid that is 2,4-dihydroxybenzoic acid in which the hydrogen at position 6 is replaced by a methyl group. | o-orsellinic acid |
| platencin | A monocarboxylic acid amide obtained by the formal condensation of the amino group of 3-amino-2,4-dihydroxybenzoic acid with the carboxy group of the polycyclic cage component. It is an antibiotic isolated from Streptomyces platensis and exhibits inhibitory activity against fatty acid synthase. | platencin |
| platensimycin | A monocarboxylic acid amide obtained by the formal condensation of the amino group of 3-amino-2,4-dihydroxybenzoic acid with the carboxy group of the oxatetracyclic cage component. It is an antibiotic isolated from Streptomyces platensis and exhibits inhibitory activity against fatty acid synthase. | platensimycin |
| protocatechuic acid | A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4. | 3,4-dihydroxybenzoic acid |