crotonic acid

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cro·ton·ic acid

Either of two geometric isomers of a corrosive organic acid, C4H6O2, used in the preparation of pharmaceuticals and resins.

[From New Latin Croton, plant genus; see croton.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

crotonic acid

(Elements & Compounds) a colourless crystalline insoluble unsaturated carboxylic acid produced by oxidation of crotonaldehyde and used in organic synthesis; trans-2-butenoic acid. Formula: CH3CH:CHCOOH
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Degradation products are crotonic acid, linear oligomers having a crotonate end group and dimers and trimers of crotonic acid [9].
Crotonate is a short-chain unsaturated carboxylic acid (C[H.sub.3]CH=CHC[O.sub.2]H) that increases the crotonylation in histones.
The following analytical standards were purchased from Sigma-Aldrich (Germany): ethyl butanoate, ethyl crotonate, butyl acetate, butyl butanoate, ethyl hexanoate, hexyl acetate, propyl hexanoate, ethyl octanoate, octyl acetate, isoamylhexanoate, methyl acetate, hexyl hexanoate, ethyl decanoate, citronellyl acetate, 2-heptenal, nonanal, trans-2-nonenal, decanal, cis-3-hexen-1-ol, trans-3-hexen-1-ol, hexan-1-ol, 1octanol, linalool, [alpha]-pinene, [beta]-pinene, myrcene, limonene, [gamma]-terpinene, [alpha]-terpinene, terpinolene, [alpha]-ionone, [beta]-ionone, 6methyl-5-hepten- 2-one, rose oxide, and citronellol.
Peaks in ESI-MS spectrum showed a peak-to-peak mass increment of 86 Da, which is equal to the mass of the 3-hydroxybutyrate repeating unit; the series of ions corresponds to the sodium adduct of oligo(3-hydroxybutyrate) with crotonate and carboxyl end groups.
Myers, "Scalable synthesis of enantiomerically pure syn-2,3-dihydroxybutyrate by sharpless asymmetric dihydroxylation of p-phenylbenzyl crotonate," The Journal of Organic Chemistry, vol.
The possibility of synthesis of cobaltites as high-dispersity material using the respective metal cobalt crotonate hydrazinate as precursors is studied in the present paper.
Besides co-culture with methanogens, most SPOB can grow on special substrates in pure culture, such as pyruvate, fumarate, and crotonate (Nilsen et al., 1996; Liu et al., 1999; Plugge et al., 2002; Imachi et al., 2002; Chen et al., 2005).
2-Methylheptyl-4, 6-dinitrophenyl crotonate, the active ingredient in the fungicide dinocap, was the only very potent inhibitor of this CYP450 found.