citrinn.
/ˈsɪtrɪn/, U.S. /ˈsɪtrən/ Chemistry.† 1. = citroglycerin n. at citro- comb. form . Obsolete.
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1863 H. Watts Dict. Chem. I. 1001 The citrins are derived from glycerin.
1875 Chem. News 7 Mar. 109/1 Citric acid + glycerine − 6HO = citrin.
2. A substance originally extracted from lemons and formerly thought to act as a vitamin (vitamin P), subsequently identified as a mixture of flavonoid glycosides. Now rare.
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the world > matter > chemistry > organic chemistry > organic compounds > [noun] > flavones > named
datiscetin1854
galangin1882
irigenin1894
kaempferol1897
citrin1936
1936 Nature 7 Nov. 798/1 Twenty-one of the animals received 1 mgm. ‘Citrin’ daily, this substance being the crystalline flavone fraction of lemon juice.
1950 V. L. S. Charley Recent Adv. in Fruit Juice Production x. 128 Fruits, in particular citrus, contained a flavanone, or group of such substances (‘Citrin’), capable of increasing the capillary resistance in man and animals.
2013 A. G. Kurmukov in Medicinal Plants Central Asia: Uzbekistan & Kyrgyzstan iv. 14 These compounds (rutin, quercetin, hesperidin, citrin and others) have the ability to decrease the permeability of vascular walls.
This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).
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