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Pronunciation varies by accent · noun
(organic chemistry) Any of very many isomeric univalent hydrocarbon radicals, C₁₈H₃₇, formally derived from an octadecane by the loss of a hydrogen atom.
Although catalyst IV also has good catalytic performance, it was totally soluble in the reaction system during and after the epoxidation, because it contains a big octadecyl benzyl dimethyl ammonium ion.
A 0.5-ml sample of the supernatant was put on a 6-ml activated, octadecyl solid-phase extraction cartridge (Bakerbond, J. T. Baker, Phillipsburg, NJ) and eluted with 2-ml volumes of H 2 O, 50% CH 3 CN (Low-UV HPLC grade, Burdick and Jackson) in H 2 O, and CH 3 CN. All fractions were concentrated to near dryness under vacuum (Speed Vac rotary concentrator, Savant Instruments, Farmingdale, NY) and redissolved in 0.5 ml of 50 mM pH 8 buffer, for bioassay.
Use octadecyl when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Octadecyl means (organic chemistry) Any of very many isomeric univalent hydrocarbon radicals, C₁₈H₃₇, formally derived from an octadecane by the loss of a hydrogen atom.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Although catalyst IV also has good catalytic performance, it was totally soluble in the reaction system during and after the epoxidation, because it contains a big octadecyl benzyl dimethyl ammonium ion.
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