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Quinaldine :: Quinaldine (n.) A colorless liquid of a slightly pungent odor, C9H6N.CH3, first obtained as a condensation product of aldehyde and aniline, and regarded as a derivative of quinoline; -- called also methyl quinoline..

Valeridine :: Valeridine (n.) A base, C10H19N, produced by heating valeric aldehyde with ammonia. It is probably related to the conine alkaloids..

Polymerize :: Polymerize (v. i.) To change into another substance having the same atomic proportions, but a higher molecular weight; to undergo polymerization; thus, aldehyde polymerizes in forming paraldehyde..

Mercaptal :: Mercaptal (n.) Any one of a series of compounds of mercaptans with aldehydes.

Oxaldehyde :: Oxaldehyde (n.) Same as Glyoxal.

Unsaturated :: Unsaturated (a.) Capable of taking up, or of uniting with, certain other elements or compounds, without the elimination of any side product; thus, aldehyde, ethylene, and ammonia are unsaturated..

Hydramide :: Hydramide (n.) One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes.

Aldehydic :: Aldehydic (a.) Of or pertaining to aldehyde; as, aldehydic acid..

Trigenic :: Trigenic (a.) Of, pertaining to, or designating, an acid, C4H7N3O2, obtained, by the action of the vapor of cyanic acid on cold aldehyde, as a white crystalline substance having a slightly acid taste and faint smell; -- called also ethidene- / ethylidene-biuret..

Oxidize :: Oxidize (v. t.) To remove hydrogen from (anything), as by the action of oxygen; as, to oxidize alcohol so as to form aldehyde..

Ethylidene :: Ethylidene () An unsymmetrical, divalent, hydrocarbon radical, C2H4 metameric with ethylene but written thus, CH3.CH to distinguish it from the symmetrical ethylene, CH2.CH2. Its compounds are derived from aldehyde. Formerly called also ethidene..

Alanine :: Alanine (n.) A white crystalline base, C3H7NO2, derived from aldehyde ammonia..

Acetaldehyde :: Acetaldehyde (n.) Acetic aldehyde. See Aldehyde.

Ketone :: Ketone (n.) One of a large class of organic substances resembling the aldehydes, obtained by the distillation of certain salts of organic acids and consisting of carbonyl (CO) united with two hydrocarbon radicals. In general the ketones are colorless volatile liquids having a pungent ethereal odor..

Metaldehyde :: Metaldehyde (n.) A white crystalline substance isomeric with, and obtained from, acetic aldehyde by polymerization, and reconvertible into the same..

Formyl :: Formyl (n.) A univalent radical, H.C:O, regarded as the essential residue of formic acid and aldehyde..

Paraconine :: Paraconine (n.) A base resembling and isomeric with conine, and obtained as a colorless liquid from butyric aldehyde and ammonia..

Aldehyde :: Aldehyde (n.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation..

Heterology :: Heterology (n.) The connection or relation of bodies which have partial identity of composition, but different characteristics and properties; the relation existing between derivatives of the same substance, or of the analogous members of different series; as, ethane, ethyl alcohol, acetic aldehyde, and acetic acid are in heterology with each other, though each in at the same time a member of a distinct homologous series. Cf. Homology..

Piperonal :: Piperonal (n.) A white crystalline substance obtained by oxidation of piperic acid, and regarded as a complex aldehyde..

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