hexonen.
/ˈhɛksəʊn/ Chemistry.
1. In full, hexone base: any of the three basic amino-acids arginine, histidine, and lysine. Kossel distinguished between hexon and hexonbase (see quot. 18982).
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1898 Jrnl. Chem. Soc. 74 i. 612 The substances..are called protones; these are, by the prolonged action of pancreatic juice, partially broken up into hexones (lysine, histidine, arginine).
1898 Jrnl. Chem. Soc. 74 i. 715 By the further hydrolysis of the protamines the hexon bases, histidine, arginine, and lysine, are produced, the name hexon being retained for nitrogenous substances, and obtained by the decomposition of proteids containing six atoms of carbon.
1905 J. Wade Introd. Study Org. Chem. (new ed.) lxxiii. 555 Histidine, the principal representative of the ‘hexone’ bases, is an important degradation product of proteïns.
1953 Biochem. Jrnl. 53 435/2 A new technique for the estimation and isolation of the hexone bases in protein hydrolysates.
2. The name for methyl isobutyl ketone as used industrially.
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the world > matter > chemistry > organic chemistry > ketones > [noun] > used as solvents
mesityl oxide1868
methyl ethyl ketone1876
methyl isobutyl ketone1888
MEK1930
hexone1938
1938 T. H. Durrans Solvents (ed. 4) ii. iii. 126 Methyl isobutyl ketone, or 2-methyl pentanone 5, known industrially as hexone, is a medium boiling solvent for nitrocellulose.
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) X. 423/1 In the industrial process employing hexone (the Redox process), the uranium fuel is dissolved in nitric acid.
This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020).
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n.1898