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Catechol (/ ˈ k æ t ɪ tʃ ɒ l / or / ˈ k æ t ɪ k ɒ l /), also known as pyrocatechol or 1,2-dihydroxybenzene, is an organic compound with the molecular formula C 6 H 4 (OH) 2. It is the ortho isomer of the three isomeric benzenediols .
A catechol estrogen is a steroidal estrogen that contains catechol (1,2-dihydroxybenzene) within its structure. [1] The catechol estrogens are endogenous metabolites of estradiol and estrone and include the following compounds: [ 1 ] [ 2 ]
Catechol. A catecholamine (/ ˌ k æ t ə ˈ k oʊ l ə m iː n /; abbreviated CA) is a monoamine neurotransmitter, an organic compound that has a catechol (benzene with two hydroxyl side groups next to each other) and a side-chain amine. [1] Catechol can be either a free molecule or a substituent of a larger molecule, where it represents a 1,2 ...
l-DOPA can be directly metabolized by catechol-O-methyl transferase to 3-O-methyldopa, and then further to vanillactic acid. This metabolic pathway is nonexistent in the healthy body, but becomes important after peripheral l-DOPA administration in patients with Parkinson's disease or in the rare cases of patients with AADC enzyme deficiency. [11]
Mammalian siderophores, specifically catechols, can be found in the human gut and in siderophores, such as enterobactin, and serve as iron-binding moieties. [ 5 ] [ 26 ] Catechol resembling molecules can act as iron ligands in the cell and in systematic circulation , allowing siderocalin to bind to the iron-catechol complex. [ 27 ]
The look is a mini dress-coat combo that showcased her seriously sculpted legs. Ana paired the whole thing with strappy sandals, hoop earrings, and a messy ponytail for a look that’s totally ...
Hailee Steinfeld celebrated the premiere of the newest Spider-Man movie with a killer look on the red carpet. And she’s giving major Daddy Long Legs vibes with a hip-high slit that showed off ...
Catechol-O-methyltransferase (COMT; EC 2.1.1.6) is one of several enzymes that degrade catecholamines (neurotransmitters such as dopamine, epinephrine, and norepinephrine), catecholestrogens, and various drugs and substances having a catechol structure. [7] In humans, catechol-O-methyltransferase protein is encoded by the COMT gene. [8]