isobutyric acid


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Related to isobutyric acid: isopentanoic acid

isobutyric acid

(ī'səbyo͞otēr`ĭk): see butyric acidbutyric acid
or butanoic acid
, CH3CH2CH2CO2H, viscous, foul-smelling, liquid carboxylic acid; m.p. about −5°C;; b.p. 163.5°C;. It is miscible with water, ethanol, and ether.
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isobutyric acid

[¦ī·sō·byü′tir·ik ′as·əd]
(organic chemistry)
(CH3)2CHCOOH Colorless liquid boiling at 154°C; soluble in water, alcohol, and ether; used as a chemical intermediate and disinfectant, in flavor and perfume bases, and for leather treating.
References in periodicals archive ?
Eastman isobutyric acid can be found in a number of applications in various markets, including agriculture intermediates, food flavors and fragrance, and protective coatings.
The reaction mixture contained 0.6 g of the milled biocatalyst, various quantities of isobutyric acid, and n-amyl alcohol and 200 [micro]L of 7.00 [+ or -] 0.01 buffer solution.
Only small amounts of butyric acid, isobutyric acid, and propionic acid were detected in the BPS after 50 days.
The first system, isobutyric acid and water, exhibits an Upper Critical Solution Temperature at 26.5[degrees] C above which it is miscible in all proportions.
Trial x treatment interactions were found only for prestorage bale DM density and for silage propionic and isobutyric acid concentrations; therefore, the data are presented as means of the two trials.
A classic example of this sensory problem occurred when test subjects sniffed isobutyric acid, which smells like dirty socks or an unclean goat to most people.
This study focused on the unusual interfacial phenomena of two different systems: IBA(isobutyric acid)/water and butanol/water.
The fatty acid mixture contained valeric acid, 0.5 mL; isovaleric acid, 0.5 mL; 2-methylbutyric acid, 0.5 mL; isobutyric acid, 0.5 mL; and distilled water, 20.0 mL, adjusting pH to 7.5 with concentrated NaUH.
Louis, MO, USA): acetic acid (99.7%), propanoic acid (99.5%), bButyric acid (99%), isobutyric acid (99%), valeric acid (99%), isovaleric acid (99%), indole (99%), skatole (98%) and p-cresol (99%).
Concentration of VFAs including acetic acid, propionic acid, butyric acid, isobutyric acid and iso-valeric acid was increased as a greater amount of dietary CP was added to the experimental diets.
Fermentation characteristics of annual ryegrass (Lolium multiflorum Lam.) round bale silage and summary of effects from analysis of variance Harvest stage Booting Heading Anthesis ph 5.28 (b) 5.43 (b) 6.59 (a) Titratable acidity (meq/g) 1.25 (a) 1.01 (a) 0.10 (b) Ammonia (g/kg TN) 21.9 (a) 13.4 (b) 15.2 (b) Lactic acid (g/kg DM) 26.2 (a) 13.4 (b) 0.50 (c) Acetic acid (g/kg DM) 10.3 (a) 4.3 (b) 1.1 (c) Propionic acid (g/kg DM) 0.40 (a) <0.001 (c) 0.01 (b) Isobutyric acid (g/kg DM) 1.40 (a) 0.01 (b) 0.01 (b) Butyric acid (g/kg DM) 0.34 (a) 0.02 (b) 0.02 (b) Total VFA (g/kg DM) 38.7 (a) 17.7 (b) 1.70 (c) Lactic to VFA ratio 0.64 (a) 0.67 (a) 0.25 (b) TN, total nitrogen; DM, dry matter; VFA, volatile fatty acid.