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The trihydroxybenzenes (or benzenetriols) are organic compounds with the formula C 6 H 3 (OH) 3. Also classified as polyphenols, they feature three hydroxyl groups substituted onto a benzene ring. They are white solids with modest solubility in water.
1,2,3,4-Tetrahydroxybenzene 1,2,3,5-Tetrahydroxybenzene 1,2,4,5-Tetrahydroxybenzene Structural Formula: CAS Registry Number: 642-96-6 634-94-6 636-32-8
Hydroxyquinol is a common intermediate in the biodegradation of many aromatic compounds. These substrates include monochlorophenols, dichlorophenols, and more complex species such as the pesticide 2,4,5-T. [5]
It is a metabolite in the degradation of 3,4,5-trihydroxybenzoate (gallic acid) by Eubacterium oxidoreducens. [ 1 ] The enzyme pyrogallol hydroxytransferase uses 1,2,3,5-tetrahydroxybenzene and 1,2,3-trihydroxybenzene ( pyrogallol ), whereas its two products are 1,3,5-trihydroxybenzene ( phloroglucinol ) and 1,2,3,5-tetrahydroxybenzene.
The 3 substrates of this enzyme are 2-hydroxy-1,4-benzoquinone, NADH, and H +, whereas its two products are 1,2,4-trihydroxybenzene and NAD +. This enzyme participates in gamma-hexachlorocyclohexane degradation and 1,4-dichlorobenzene degradation .
Thus, the two substrates of this enzyme are 1,2,3,5-tetrahydroxybenzene and 1,2,3-trihydroxybenzene (pyrogallol), whereas its two products are 1,3,5-trihydroxybenzene (phloroglucinol) and 1,2,3,5-tetrahydroxybenzene. This enzyme participates in benzoic acid degradation via CoA ligation.
In the body, benzene is enzymatically converted to a series of oxidation products including muconic acid, phenylmercapturic acid, phenol, catechol, hydroquinone and 1,2,4-trihydroxybenzene. Most of these metabolites have some value as biomarkers of human exposure, since they accumulate in the urine in proportion to the extent and duration of ...
Trichlorobenzene (TCB) may refer to any of three isomeric chlorinated derivatives of benzene with the molecular formula C 6 H 3 Cl 3. They differ by the positions of the chlorine atoms around the ring: 1,2,3-Trichlorobenzene; 1,2,4-Trichlorobenzene; 1,3,5-Trichlorobenzene