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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 ?
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.
001 mol) namely, methyl chloroformate, ethyl chloroformate, propyl chloroformate and isobutyl chloroformate was added.
Among the topics are the influence of copolymer of sodium-methacrylic acid and methacrylic acid isobutyl ester on the physical-mechanical properties of cement systems, experimental data by piecewise linear functions, using micro-sized ferrocomposite particles to immobilize biologically active compounds, the thermal destruction process of aromatic polyamide and organic plastics, and two chemiluminescent methods for determining the blood serum antioxidant activity of patients with liver pathology.
Snap by Parkell or Temp-Plus by Ellman), with the R' representing an ethyl, vinyl or an isobutyl functional methacrylate system.
In this study, two different POSS, acrylisobutyl POSS (AIBuPOSS) which contains one acryl group and seven isobutyl groups per molecule (Fig.
Acetone is a backbone intermediate in the production of methyl methacrylate monomers, bisphenol A, and aldol chemicals such as methyl isobutyl ketone, and is used as a solvent in many of the same products.
These include phltalates, mercury, formaldehydes, antimony, vinyl chloride, methyl ethyl or isobutyl ketone, and cadmium.