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单词 imperatorin
释义

imperatorinn.

Brit. /ɪmˌpɛrəˈtɔːrɪn/, U.S. /ᵻmˌpɛrəˈtɔrən/
Forms: 1800s imperatrin (irregular), 1800s– imperatorin.
Origin: A borrowing from German. Etymon: German Imperatorin.
Etymology: < German Imperatorin (H. Wackenroder 1831, in Arch. der Pharmazie 37 341) < scientific Latin Imperatoria , genus name ( Linnaeus Species plantarum (1753) I. 259; < classical Latin imperātōrius imperatory adj. + -a -a suffix1) + German -in -in suffix1.
Chemistry.
A crystalline compound having a tricyclic molecule containing fused coumarin and furan rings, originally isolated from masterwort, Imperatoria ostruthium, and also occurring in other plants.Formula C16H14O4.
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the world > matter > chemistry > organic chemistry > neutral substances from plants > [noun]
ulmic acid1831
pectin1833
peucedanin1836
imperatorin1838
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sycoretin1860
templin-oil1868
vanillin1868
phytosterin1881
carrageenin-
1838 T. Thomson Chem. Org. Bodies 820 Wackenroder, who examined it particularly, distinguished it by the name of imperatrin.
1876 Proc. Amer. Pharmaceut. Assoc. 23 453 V. Gorup-Besanez endeavored to obtain imperatorin (or peucedanin..) from the recent root of Imperatoris ostruthium (Masterwort).
1909 H. A. Hare et al. National Standard Dispensatory (ed. 2) 1661 The drug contains crystalline ostruthin and imperatorin.
1981 Oecologia 49 236/1 Xanthotoxin, imperatorin and bergapten (linear furanocoumarins) occur in all above-ground parts of the plant.
2008 Proc. National Acad. Sci. U.S.A. 105 4548/1 Concomitant with the rise in webworm infestation.., levels of all five furanocoumarins (those previously associated with resistance as well as imperatorin and isopimpinellin) increased significantly [in wild parsnip plants].
This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022).
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n.1838
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