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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 .
Their investigation constitutes a major chapter in the history of physiology, biochemistry, and pharmacology. Adrenaline was the first hormone extracted from an endocrine gland and obtained in pure form, before the word hormone was coined. [2] Adrenaline was also the first hormone whose structure and biosynthesis was discovered.
Norepinephrine degradation. Catechol-O-methyltransferase is shown in green boxes.[5] [6]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]
Google Translate is a multilingual neural machine translation service developed by Google to translate text, documents and websites from one language into another. It offers a website interface, a mobile app for Android and iOS, as well as an API that helps developers build browser extensions and software applications. [3]
Google Dictionary is an online dictionary service of Google that can be accessed with the "define" operator and other similar phrases [note 1] in Google Search. [2] It is also available in Google Translate and as a Google Chrome extension .
Notre-Dame de Paris (French: Cathédrale Notre-Dame de Paris French: [nɔtʁ(ə) dam də paʁi] ⓘ; meaning "Cathedral of Our Lady of Paris"), often referred to simply as Notre-Dame, [a] is a medieval Catholic cathedral on the Île de la Cité (an island in the River Seine), in the 4th arrondissement of Paris, France.
The French Wikipedia (French: Wikipédia en français) is the French-language edition of Wikipedia, the free online encyclopedia.This edition was started on 23 March 2001, two months after the official creation of Wikipedia. [1]
Codex Manesse, fol. 292v, "The Schoolmaster of Esslingen" (Der Schulmeister von Eßlingen). A catechism (/ ˈ k æ t ə ˌ k ɪ z əm /; from Ancient Greek: κατηχέω, "to teach orally") is a summary or exposition of doctrine and serves as a learning introduction to the Sacraments traditionally used in catechesis, or Christian religious teaching of children and adult converts. [1]