orcinn.

Brit.

/ˈɔːsɪn/, U.S.

/ˈɔrs(ə)n/

Forms: 1800s orcine, 1800s– orcin.

Origin: A borrowing from French. Etymon: French orcine.

Etymology: < French orcine a colourless compound obtained from the lichen orchil (P. J. Robiquet 1829, in Ann. de chim. et de physique 42 252) < scientific Latin orcina , specific epithet of the lichen orchil (Persoon, 1801) < Dutch ors- (in orseille (1578 or earlier) < French orseille orchil n.) + classical Latin -īna -ine suffix⁵; compare -in suffix¹.

Chemistry.

A colourless compound obtained from the lichen orchil, from which orcein is made; = orcinol n. Cf. orcein n.

ΘΚΠ

the world > matter > chemistry > organic chemistry > crystalline substances > [noun] > others

amygdalin1651

asparagine1813

ambrein1820

aloin1828

orcin1833

anemonin1838

guaranin1838

helenin1838

puteanic acid1838

styracin1838

alloxanic acid1839

roccelline1840

sinapisine1840

lilacine1842

syringin1843

orsellic acid1848

roccellinin1848

rhamnetin1858

sapogenin1862

frangulin1864

phycite1864

fisetin1865

nucin1866

phlorone1866

piperonal1869

apiol1872

stercorin1873

juglone1878

orcinol1880

kinoin1881

ursone1885

iridin1894

saponarin1902

sambunigrin1905

lepton1921

leuco-taxin1937

lotaustralin1938

ionophore1955

1833 Rep. Brit. Assoc. 1831–2 515 Colouring matters... Orcin.

1840 Penny Cycl. XVI. 480/2 These crystals are orcin, which become, as already stated, of a reddish violet colour by the action of the air and alkalis.

1873 H. Watts Fownes's Man. Elem. Chem. (ed. 11) 805 Orcin appears to exist ready-formed in all the lichens.

1881 Athenæum 15 Jan. 99/3 Homo-fluoresceine, a new Colouring Matter from Orcine and its Derivatives.

1929 Bot. Gaz. 88 232 Orcin and phoroglucin [sic] were employed to test for lignin.

1983 Proc. National Acad. Sci. U.S.A. 80 5470/2 Silica thin-layer chromatography..was performed with butanol/acetic acid/water..and evaluated by spraying with ninhydrin (1 mg/ml in ethanol) and orcin [1 mg/ml in 20% (vol/vol) sulfuric acid] reagents.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orcin
释义	orcinn. Brit. /ˈɔːsɪn/, U.S. /ˈɔrs(ə)n/ Forms: 1800s orcine, 1800s– orcin. Origin: A borrowing from French. Etymon: French orcine. Etymology: < French orcine a colourless compound obtained from the lichen orchil (P. J. Robiquet 1829, in Ann. de chim. et de physique 42 252) < scientific Latin orcina , specific epithet of the lichen orchil (Persoon, 1801) < Dutch ors- (in orseille (1578 or earlier) < French orseille orchil n.) + classical Latin -īna -ine suffix⁵; compare -in suffix¹. Chemistry. A colourless compound obtained from the lichen orchil, from which orcein is made; = orcinol n. Cf. orcein n. ΘΚΠ the world > matter > chemistry > organic chemistry > crystalline substances > [noun] > others amygdalin1651 asparagine1813 ambrein1820 aloin1828 orcin1833 anemonin1838 guaranin1838 helenin1838 puteanic acid1838 styracin1838 alloxanic acid1839 roccelline1840 sinapisine1840 lilacine1842 syringin1843 orsellic acid1848 roccellinin1848 rhamnetin1858 sapogenin1862 frangulin1864 phycite1864 fisetin1865 nucin1866 phlorone1866 piperonal1869 apiol1872 stercorin1873 juglone1878 orcinol1880 kinoin1881 ursone1885 iridin1894 saponarin1902 sambunigrin1905 lepton1921 leuco-taxin1937 lotaustralin1938 ionophore1955 1833 Rep. Brit. Assoc. 1831–2 515 Colouring matters... Orcin. 1840 Penny Cycl. XVI. 480/2 These crystals are orcin, which become, as already stated, of a reddish violet colour by the action of the air and alkalis. 1873 H. Watts Fownes's Man. Elem. Chem. (ed. 11) 805 Orcin appears to exist ready-formed in all the lichens. 1881 Athenæum 15 Jan. 99/3 Homo-fluoresceine, a new Colouring Matter from Orcine and its Derivatives. 1929 Bot. Gaz. 88 232 Orcin and phoroglucin [sic] were employed to test for lignin. 1983 Proc. National Acad. Sci. U.S.A. 80 5470/2 Silica thin-layer chromatography..was performed with butanol/acetic acid/water..and evaluated by spraying with ninhydrin (1 mg/ml in ethanol) and orcin [1 mg/ml in 20% (vol/vol) sulfuric acid] reagents. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1833
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