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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 .
There are three structural isomers: 1,2-dihydroxybenzene (the ortho isomer) is commonly known as catechol, 1,3-dihydroxybenzene (the meta isomer) is commonly known as resorcinol, and 1,4-dihydroxybenzene (the para isomer) is commonly known as hydroquinone. [1]
1,2-Benzoquinone, also called ortho-benzoquinone, is an organic compound with formula C 6 H 4 O 2. It is one of the two isomers of quinone , the other being 1,4-benzoquinone . It is a red volatile solid that is soluble in water and ethyl ether .
Certain MadeGood granola bars sold nationwide by retailers including Amazon and Walmart are being recalled because they may contain pieces of metal, Riverside Natural Foods said in a notice posted ...
Lacoste is using AI tech Vrai to detect counterfeit returns. Return fraud costs retailers billions, with billions lost globally. Amazon and other retailers face scams exploiting return policies ...
Fractional crystallisation can be used to obtain pure para product, relying on the principle that it is less soluble than the ortho and thus will crystallise first. Care must be taken to avoid cocrystallisation of the ortho isomer. [2] Many nitro compounds' ortho and para isomers have quite different boiling points. These isomers can often be ...
The products marketed as safe were made with per- and polyfluoroalkyl substances (PFAS) chemical products, known as forever chemicals. They include brand names Teflon, Stainmaster and Scotchgard ...
The catalytic cycle begins with the catechol oxidase in its native oxidized Cu(II)-Cu(II) state with a coordinated hydroxide ion bridging the two copper centers. As catechol enters the active site, a proton is abstracted from one of the alcohols. The catechol coordinates with a Cu(II) center in a monodentate fashion, displacing one of the ...