morpholinen.
/ˈmɔːfəliːn/, /ˈmɔːfəlɪn/, U.S. /ˈmɔrfəˌlin/, /ˈmɔrfəl(ə)n/ Chemistry.
A cyclic amine, C4H9NO, which is a hygroscopic oil used as a solvent for resins and dyes and whose fatty-acid salts are emulsifying soaps used in floor polishes.
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the world > matter > chemistry > organic chemistry > amines > [noun] > named
ethylamine1849
amylamine1850
ethylia1850
petinine1850
triethylamine1850
polyamine1861
nonylamine1866
octylamine1866
carbylamine1868
tetrylamine1868
hydroxylamine1871
hydramine1877
nitrosamine1878
guanamine1881
hexamethylenetetramine1888
morpholine1889
triethanolamine1897
tropane1898
agmatine1910
tyramine1910
histamine1912
spermidine1927
monoethanolamine1929
tryptamine1929
octopamine1948
norsynephrine1952
tilorone1970
1889 Jrnl. Chem. Soc. 56 1218 Morpholine (tetrahydroparoxazine) may be regarded as the ‘inner anhydride’ of dihydroxyethylamine.
1935 Industr. & Engin. Chem. Aug. 871/1 Of the derivatives of morpholine, one of the most extensively investigated in the medical field has been morpholine ethanol.
1955 Sci. Amer. Aug. 76/3 Dilute solutions of morpholine neither attracted nor repelled salmon but were detectable by them in extremely low concentrations.
1986 C. A. Heaton Chem. Industry v. 251 The morpholine derivative Tridemorph is used to control powdery mildew in cereals.
1993 Biochem. Pharmacol. 46 47 The association of toxicity with lipophilicity was confirmed by the piperidine derivative having greater toxicity than the less hydrophobic morpholine analogue.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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n.1889