单词 | orcein |
释义 | orceinn. Chemistry. A red dye that is a constituent of orchil, consists of a number of substituted phenoxazine derivatives of orcinol, and can be obtained from orcinol by reaction with ammonia and oxygen. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring red alizarin1827 santalin1833 orcein1838 purpurin1839 indin1841 isatin1845 roseine1859 aurin1869 Turkey red oil1879 phenosafranine1883 rhodamine1888 azaleine1889 phloxine1890 pyronin1895 primuline red1900 the world > matter > colour > named colours > red or redness > red colouring matter > [noun] > dyes and dyestuffs madderOE grain1335 alkanet1343 Brazilc1386 crop-maddera1399 red-scarletc1400 alcanna?a1425 lac?c1425 madder root?c1450 incarnationa1475 jarecork1483 orchil1483 mull1507 orcanet1548 Bristol-red1551 red sanders1553 cochineal1582 safflower1583 chay1588 Pernambuco1595 red sanderswood1598 redwood1634 peach woodc1638 scarlet1653 mesteque1667 bow-dye1676 sylvester1697 corkir1703 gamene1703 orchilla1703 crap1721 saffranon1731 kino1788 Turkey red1789 lizary1791 granilla1812 munjeet1813 rubiate1835 orcein1838 purpurin1839 ruby wood1843 sassafrid1852 aal1853 pink salt1853 magenta1860 fuchsine1865 paeonin1865 safranine1868 corallin1873 marina1874 Magdala red1875 alizarin1878 eosin1879 Turkey red oil1879 roccelline1880 ponceau1885 amarant1888 phloxine1890 hypernic1897 Turkish red1900 Lithol red1930 1838 T. Thomson Chem. Org. Bodies 404 To the substance into which orcin is converted by the joint action of oxygen, ammonia, and water, Robiquet has given the name of orcein. 1876 J. Harley Royle's Man. Materia Med. (ed. 6) 363 The blue colouring matter called orcein, (C7H7NO3), which is the essential constituent of these dyes. 1920 Science 27 Aug. 207/1 The dyes, orcein, alizarin, purpurin. 1946 Proc. Royal Soc. B. 133 315 Smear preparations were also made and stained with acetic lacmoid and orcein. 1985 C. R. Leeson et al. Textbk. Histol. (ed. 5) iii. 105/1 Elastic fibers stain erratically with eosin, but can be stained selectively with orcein (brown) and resorcin-fuchsin (dark blue-purple). This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1838 |
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