单词 | primuline |
释义 | primulinen. Chemistry. A synthetic yellow dyestuff derived from primuline base and used as a fluorescent stain.Formula: C21H14N3O3S3Na. The dye may also contain other analogous salts. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring yellow paranitraniline1872 auramine1884 primuline1887 primuline base1889 tartrazine1894 flemingin1898 flavanthrone1902 1887 Dyer & Calico Printer 7 101/1 A new series of colours..are just now being brought out by Brooke, Simpson, & Spiller (Limited). These colours, the discovery of Mr. A. G. Green, promise to compete successfully with the direct cotton colours at present in the market. The basis of the series is a compound, to which the name of primuline has been given. 1902 Science 3 Jan. 9/2 The search for direct cotton colors led the author [sc. Green] to the discovery of primulin in 1887. 1919 E. de B. Barnett Coal Tar Dyes 108 Primuline dyes cotton in bright yellow shades, but these are too fugitive to be of any value. 1968 E. N. Abrahart Dyes v. 135 Among the direct dyes C.I. Direct Red 70..employs Primuline as diazo component and Schäffer's acid as coupling component. 1986 Biochemistry 25 2860/2 The bands separated on HPTLC were indicated by Primulin spray followed by UV detection. Compounds primuline base n. a yellow thiazole derivative, C21H15N3S2, which is obtained when p-toluidine is heated with sulphur and is an intermediate in dye manufacture; (also) any of the related compounds formed by this process. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring yellow paranitraniline1872 auramine1884 primuline1887 primuline base1889 tartrazine1894 flemingin1898 flavanthrone1902 1889 Jrnl. Chem. Soc. 55 228 The product is not homogeneous, but consists of about 50 per cent. of a base, C14H12N2S,..40 per cent. of primuline-base, and 10 per cent. of unaltered paratoluidine. 1913 Thorpe's Dict. Appl. Chem. (ed. 2) IV. 385/1 These more condensed bases (‘primuline bases’) were obtained in larger amount by increasing the proportion of sulphur to 4½–5 atoms to 1 mol. amine. 1968 E. N. Abrahart Dyes v. 135 The sulphurization products of p-toluidine, primuline base and dehydrothio-p-toluidine are used..in the manufacture of some valuable cotton dyes. primuline red n. now rare a red dyestuff obtained from primuline base by diazotization followed by coupling with β-naphthol. 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 1900 Jrnl. Soc. Chem. Industry 30 Apr. 345/1 Primuline Red is obtained by dyeing with Primuline, diazotising, and developing with β-naphthol. 1917 Jrnl. Soc. Dyers & Colourists 33 140/1 I replied by pointing out the greater fastness of Primuline Red compared to Benzopurpurine. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1887 |
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