Benzenediols that have the hydroxy substituents in the 1- and 4-positions.
| Member | Definition | Role |
|---|
| 2-(s-glutathionyl)hydroquinone | A glutathione conjugate in which the thiol hydrogen of glutathione has been replaced by a 2,5-dihydroxyphenyl group. | 2-(glutathion-S-yl)-1,4-hydroquinone |
| 2-methyl-1,4-hydroquinone | A member of the class of hydroquinones that is hydroquinone in which one of the benzene hydrogens has been replaced by a methyl group. | toluquinol |
| 2-tert-butylhydroquinone | A member of the class of hydroquinones in which one of the ring hydrogens of hydroquinone is replaced by a tert-butyl group. | 2-tert-butylhydroquinone |
| 2,3,5-trimethylquinol | A member of the class of hydroquinones that is hydroquinone substituted by methyl groups at positions 2, 3 and 5. | 2,3,5-trimethylhydroquinone |
| 2,5-di-tert-butylhydroquinone | A member of the class of hydroquinones that is benzene-1,4-diol substituted by tert-butyl groups at position 2 and 5. | 2,5-di-tert-butylbenzene-1,4-diol |
| cytotrienin a | A 21-membered macrocyclic lactam which contains three conjugated double bonds as part of the ring system. It acts as an apoptosis inducer in human leukemia HL-60 cells and is isolated from Streptomyces sp. | cytotrienin A |
| duroquinol | A member of the class of hydroquinones that is benzene-1,4-diol carrying four methyl groups at positions 2, 3, 5 and 6. | durohydroquinone |
| flavoglaucin | | Flavoglaucin |
| homogentisic acid | A dihydroxyphenylacetic acid having the two hydroxy substituents at the 2- and 5-positions. | homogentisic acid |
| hydroquinone | A benzenediol comprising benzene core carrying two hydroxy substituents para to each other. | hydroquinone |
| methyl 2,5-dihydroxycinnamate | A cinnamate ester that is the methyl ester of 2,5-dihydroxycinnamic acid. | 2,5-dihydroxycinnamic acid methyl ester |