Also found in: Thesaurus, Medical, Wikipedia.
Related to straight-chain: branched chain


an open chain of atoms, usu. carbon, with no side chains attached.
References in periodicals archive ?
In the light of the stringent environmental laws, isomerization is a good process as it enhances the octane number of hydrocarbons especially lighter hydrocarbon in the range of C5-C6 by converting their straight-chain structure into branched chain structure without producing aromatics in the products [3].
Asphaltenes have been shown to exhibit polymeric behavior, be soluble in aromatics and longer straight-chain hydrocarbons, and insoluble in alcohols and water, increase viscosity and stiffness, and harden softer petroleum fractions.
Diacyl glycerols based on straight-chain fatty acids are produced by bacteria and eukaryotes, whereas archaea synthesize isoprenoidal glycerol ether lipids.
Comment: Azelaic acid is a 9-carbon straight-chain dicarboxylic acid that occurs naturally in some foods.
The straight-chain higher alcohols are considered to have the most significant sensorial impact (1-propanol, 2-methyl-1-propanol (isobutyl alcohol), 2-methyl-1-butanol and 3-methyl-1-butanol (isoamyl alcohol).
It is comprised of a structuring agent consisting of a low molecular mass N-acyl glutamic acid diamide having a straight-chain alkyl group comprising dibutyl lauroyl glutamide, a low molecular mass N-acyl glutamic acid diamide having a branched-chain alkyl group comprising dibutyl ethylhexanoyl glutamide, and at least one polyorganosiloxane polymer comprising a nylon-611/dimethicone copolymer.
About 50 individual features for isopropyl cyanide (and 120 for normal-propyl cyanide, its straight-chain sister molecule) were identified in the ALMA spectrum of the Sagittarius B2 region.
Straight-chain aldehydes may result from B-oxidation of unsaturated FA or from amino acids by strecker degradation.
Pronounced noh-na-nahl or noh-na nal, it is a straight-chain aldehyde containing nine carbon atoms (usually the 1-monoaldehyde of nonane).
It is a straight-chain polysaccharide made up of glucose molecules covalently bonded by beta linkages.
In the laboratory, FTT reactions produce amino acids, and can show a preference for making straight-chain molecules.
Evidence of prodigious activity was measured in a depression of nitrates in the water and a continuous loss of straight-chain oil hydrocarbons known as alkanes.