xylene |
<chemistry> Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit. They are colourless, oily, inflammable liquids, C6H4.(CH3)2, being dimethyl benzenes, and are called respectively orthoxylene, metaxylene, and paraxylene. Synonym: xylol. Each of these xylenes is the nucleus and prototype of a distinct series of compounds. Origin: Gr. Xylon wood. Source: Websters Dictionary (01 Mar 1998) |
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xylene cyanol FF |
An acidic triphenylmethane dye used for histochemical staining of haemoglobin peroxidase and as a tracking dye for DNA sequencing in electrophoresis. (05 Mar 2000) |
xylene monooxygenase |
<enzyme> Coded by the tol plasmid of pseudomonas putida, oxidises the methyl side chain of toluene and xylenes Registry number: EC 1.14.13.- (26 Jun 1999) |
xylenes |
A family of isomeric, colourless aromatic hydrocarbon liquids, that contain the general formula c6h4(ch3)2. They are produced by the destructive distillation of coal or by the catalytic reforming of petroleum naphthenic fractions. (12 Dec 1998) |