aesculetinesculetinn.
/ˌɛskjᵿˈliːtɪn/, /ˌiːskjᵿˈliːtɪn/, U.S. /ˌɛskjəˈlid(ə)n/ Chemistry.
A bitter crystalline substance formed by the hydrolysis of aesculin, of which it is the aglycone.Aesculetin is a bicyclic lactone. Systematic name: 6,7-dihydroxycoumarin; C9H6O4.
ΘΚΠ
the world > matter > chemistry > organic chemistry > neutral substances from plants > bitter principles > [noun] > crystallizable or crystalline
guaiacin1830
phlorizin1835
phillyrin1838
aesculetin1853
thiosinamine1853
taraxacin1858
olivite1866
taraxacerin1890
1853 Chem. Gaz. 15 Aug. 303 The crystals of this substance, to which the authors give the name of æsculetine, are very difficult of solution in water.
1908 Bot. Gaz. 45 91 Both esculin and esculetin have been found in plants, but little is known concerning their distribution.
1932 A. L. Winton & K. G. B. Winton Struct. & Composition Foods I. 347 Esculin..is a glucoside occurring in all parts of the plant [sc. horse-chestnut], particularly in the bark and shell. It splits up into esculetin..and d-glucose, due according to Sigmund to the action of an enzyme.
1934 C. C. Steele Introd. Plant Biochem. vi. xviii. 187 Æsculin from Horse Chestnut bark (Æsculus Hippocastanum)..is the 6-glycoside of 6,7-hydroxy-coumarin (æsculetin).
1999 S. Price & L. Price Aromatherapy for Health Professionals (ed. 2) iii. 52 Some other simple coumarin derivatives, such as umbelliferon, herniarin and aesculetin have a sunlight filter effect because they absorb ultraviolet light of 280–315 nm.
This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).
<
n.1853