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Relating to or being a hydrocarbon unit, C4H9, that can occur as a substituent in an organic compound or as an ion or radical.


(ˈbjuːˌtaɪl; -tɪl)
(Elements & Compounds) (modifier) of, consisting of, or containing any of four isomeric forms of the group C4H9–: butyl rubber.
[C19: from but(yric acid) + -yl]


(ˈbyu tɪl, ˈbyut l)

any of four univalent isomeric groups with the formula C4H9.
[1865–70; but (yric) + -yl]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.butyl - a hydrocarbon radical (C4H9)
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
isobutylene - used also in making gasoline components
References in periodicals archive ?
Moreover, Diisobutylaluminum Chloride is also known as diisobutylchloroaluminum, and bis(isobutyl)aluminum chloride.
Solvent extraction of gold from leach liquors has been studied extensively using ion pair or solvent extractants e.g., dibutylcarbitol (diethyleneglycoldibutyl ether), 4-methyl-2-pentanone (methyl isobutyl ketone; MIBK) and di (2-ethylhexyl) phosphoric acid (Akita et al., 1996).
Cobalt(II) chloride hexahydrate (98-102%; Alfa Aesar), imidazole (97 + %; Alfa Aesar), methyl isobutyl ketone (EMSURE), dimethyl sulfoxide (Fisher), and diethyl ether (Fisher) were of ACS grade and used as received without further purification.
Bis(2-ethylhexyl) phosphoric acid (BEHPA) is an ion pairing compound used in extraction of basic compounds and alkyl chloroformates (such as isobutyl chloroformate, IBCF) proved be a good derivatization reagents providing formation of N-alkoxycarbonyl esters [5].
Out of the 25 compounds, cytotoxic activity of the twenty compounds (A1-A20) was reported as a part of our study on isobutyl chalcones [37].
The principal chemical ingredient was changed from isobutyl nitrite to isopropyl nitrite after the former drug was found to be carcinogenic in 2006.
The BCF's most recent raw material prices survey for January 2017 show the three-monthly average prices for acetone going up 61 percent, n-butyl acetate up 40 percent and methyl isobutyl ketone (MIBK) 20 percent.
Celanese Corporation (NYSE:CE) announced on Thursday a rise in the list and off-list selling prices for MIBK (methyl isobutyl ketone) and MIBC (methyl isobutyl carbinol) with effect from 1 February 2017, or as contracts allow.
Styrene (Sty), hexyl acrylate (HA), ethylhexyl acrylate (EHA), isooctyl acrylate (IOA), butyl acrylate (BA), and isobutyl acrylate (IBA) reagents were purchased from Sigma-Aldrich and were used after inhibitor was removed by passing the monomers through a column of inhibitor remover (Sigma-Aldrich).
Then they tried distilled essence of chicken odour (isobutyl butyrate, naphthalene, hexadecane and trans-limonene, if you must know), and that worked too.
Speed Evaporation Rate Liquid (BuAc=1.0) Fast >3.0 Methyl Ethyl Ketone=3.8 Acetone=5.6 Hexane=8.3 Medium 0.8 to 3.0 Ethyl Alcohol=1.4 Naphtha=1.4 Slow <0.8 Isobutyl Alcohol=0.6 Xylene=0.6 Water=0.3 Mineral Spirits=0.1 Above: Evaporation rates of mineral spirits verses other solvents.
To a cold solution of 2-amino thiazole (1a) (0.001 mol) in dry pyridine (15 mL) at 0-5 C the appropriate alkyl chloroformate (2a-d) (0.001 mol) namely, methyl chloroformate, ethyl chloroformate, propyl chloroformate and isobutyl chloroformate was added.