| 单词 | neutral red |
| 释义 | > as lemmasneutral red neutral red n. a dark green crystalline azine dye, C15H16N4·HCl, which forms a red solution in water or alcohol and is used as an acid-base indicator and as a biological stain (esp. for granules and vacuoles in cells). ΘΚΠ the world > matter > chemistry > chemical tests > indicators > [noun] > pH indicators > acid or base indicators methyl orange1881 neutral red1890 methyl red1910 1890 T. E. Thorpe Dict. Appl. Chem. I. 229/2 The commercial product [sc. toluene red], which contains a certain amount of impurities, is sold under the name of ‘neutral red’... A similar product is..sold under the name of ‘neutral violet’. 1940 G. S. Carter Gen. Zool. Invertebr. iii. 40 The vacuome can be very readily stained with an intra-vitam stain, Neutral Red. 1984 Brit. Med. Jrnl. 27 May 1413/1 Neutral red..is a specific and non-toxic stain for islet of Langerhans cells in many species..and has also the useful property of fluorescence, most noticeably in alkaline solution. < as lemmas |
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