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- Q415536 subject Q18924462.
- Q415536 subject Q8220195.
- Q415536 subject Q8221418.
- Q415536 subject Q8461226.
- Q415536 subject Q8479056.
- Q415536 subject Q8508478.
- Q415536 subject Q8788974.
- Q415536 subject Q8877032.
- Q415536 abstract "3-Methylbutanoic acid, or more commonly isovaleric acid, is an organic compound with the formula (CH3)2CHCH2CO2H. It is sometimes classified as a fatty acid. It is a colourless liquid that is sparingly soluble in water, but highly soluble in most common organic solvents. The compound occurs naturally, including in essential oils. Isovaleric acid has a strong pungent cheesy or sweaty smell, but its volatile esters have pleasing scents and are used widely in perfumery. It has been proposed that it is the anticonvulsant agent in valerian. It is a major component of the cause of unpleasant foot odor, as it is produced by skin bacteria metabolizing leucine.Isovaleric acid is seen as the primary cause of the flavors added to wine caused by Brettanomyces yeasts. Other compounds produced by Brettanomyces yeasts include 4-ethylphenol, 4-vinylphenol, and 4-ethylguaiacol. An excess of isovaleric acid in wine is generally seen as a defect, as it can smell sweaty, leathery, or like a barnyard, but in small amounts it can smell smokey, spicy, or medicinal. These phenomena may be prevented by killing any Brettanomyces yeasts, such as by sterile filtration, by the addition of relatively large quantities of sulfur dioxide and sometimes sorbic acid, by mixing in alcoholic spirit to give a fortified wine of sufficient strength to kill all yeast and bacteria, or by pasteurization. Isovaleric acid can also be found in beer, and, excepting some English–style ales, is usually considered a flaw. It can be produced by the oxidation of hop resins, or by Brettanomyces yeasts present.".
- Q415536 iupacName "3-Methylbutanoic acid".
- Q415536 thumbnail Isovaleric_acid_structure.png?width=300.
- Q415536 wikiPageWikiLink Q101487.
- Q415536 wikiPageWikiLink Q157819.
- Q415536 wikiPageWikiLink Q170885.
- Q415536 wikiPageWikiLink Q174211.
- Q415536 wikiPageWikiLink Q18924462.
- Q415536 wikiPageWikiLink Q229953.
- Q415536 wikiPageWikiLink Q2411973.
- Q415536 wikiPageWikiLink Q3214940.
- Q415536 wikiPageWikiLink Q3278042.
- Q415536 wikiPageWikiLink Q407131.
- Q415536 wikiPageWikiLink Q407796.
- Q415536 wikiPageWikiLink Q409853.
- Q415536 wikiPageWikiLink Q45422.
- Q415536 wikiPageWikiLink Q4637201.
- Q415536 wikiPageWikiLink Q483745.
- Q415536 wikiPageWikiLink Q5282.
- Q415536 wikiPageWikiLink Q576618.
- Q415536 wikiPageWikiLink Q595307.
- Q415536 wikiPageWikiLink Q61476.
- Q415536 wikiPageWikiLink Q8220195.
- Q415536 wikiPageWikiLink Q8221418.
- Q415536 wikiPageWikiLink Q8461226.
- Q415536 wikiPageWikiLink Q8479056.
- Q415536 wikiPageWikiLink Q8508478.
- Q415536 wikiPageWikiLink Q8788974.
- Q415536 wikiPageWikiLink Q8877032.
- Q415536 iupacname "3".
- Q415536 name "3".
- Q415536 type ChemicalCompound.
- Q415536 type ChemicalSubstance.
- Q415536 type ChemicalObject.
- Q415536 type Thing.
- Q415536 type Q11173.
- Q415536 comment "3-Methylbutanoic acid, or more commonly isovaleric acid, is an organic compound with the formula (CH3)2CHCH2CO2H. It is sometimes classified as a fatty acid. It is a colourless liquid that is sparingly soluble in water, but highly soluble in most common organic solvents. The compound occurs naturally, including in essential oils. Isovaleric acid has a strong pungent cheesy or sweaty smell, but its volatile esters have pleasing scents and are used widely in perfumery.".
- Q415536 label "3-Methylbutanoic acid".
- Q415536 depiction Isovaleric_acid_structure.png.
- Q415536 name "3-Methylbutanoic acid".