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1,4-Benzoquinone, commonly known as para-quinone, is a chemical compound with the formula C 6 H 4 O 2. In a pure state, it forms bright-yellow crystals with a characteristic irritating odor, resembling that of chlorine, bleach, and hot plastic or formaldehyde. This six-membered ring compound is the oxidized derivative of 1,4-hydroquinone. [4]
Benzoquinone (C 6 H 4 O 2) is a quinone with a single benzene ring. There are 2 (out of 3 hypothetical) benzoquinones: 1,4-Benzoquinone, most commonly, right image (also para-benzoquinone, p-benzoquinone, para-quinone, or just quinone) 1,2-Benzoquinone, less commonly, left image (also ortho-benzoquinone, o-benzoquinone, ortho-quinone)
[1] [2] [11] In humans, the most common form of coenzymes Q is coenzyme Q 10, also called CoQ 10 (/ ˌ k oʊ k j uː ˈ t ɛ n /) or ubiquinone-10. [1] Coenzyme Q 10 is a 1,4-benzoquinone, in which "Q" refers to the quinone chemical group and "10" refers to the number of isoprenyl chemical subunits (shown enclosed in brackets in the diagram) in ...
An example of 1,4-addition reaction is the addition of hydrogen chloride to form chlorohydroquinone: 1,4-addition reaction of quinone with hydrogen chloride to produce chlorohydroquinone. Quinones can undergo Diels–Alder reactions. [10] The quinone acts as the dienophile and reacts with a diene at a carbon-carbon double bond.
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Topical steroids are the topical forms of corticosteroids.Topical steroids are the most commonly prescribed topical medications for the treatment of rash and eczema.Topical steroids have anti-inflammatory properties and are classified based on their skin vasoconstrictive abilities. [1]
The compound is often called 2-hydroxy-1,4-benzoquinone, but the "2-" prefix is superfluous since there is no other hydroxy derivative of 1,4-benzoquinone. The IUPAC name is 2-hydroxycyclohexa-2,5-diene-1,4-dione. It is formed by the reaction of 1,4-benzoquinone with hydrogen peroxide and is a byproduct of the metabolism of phenols, such as 1,2 ...
In chemistry, 1,4-benzoquinonetetracarboxylic acid is an organic compound with formula C 10 H 4 O 10, or (C 6 O 2)(-(CO)OH) 4, which can be viewed as deriving from para-benzoquinone C 6 H 4 O 2 through replacement of the four hydrogen atoms by carboxyl functional groups-(CO)OH. By removal of four protons, the acid is expected to yield the anion ...