Structure of a major component of the dye nigrosin.
In staining dyes, nigrosin (CI 50415, Solvent black 5) is a mixture of black synthetic dyes made by heating a mixture of nitrobenzene, aniline, and hydrochloric acid in the presence of copper or iron.[1] Related to induline, it is a mixture of phenazine-based compounds. Its main industrial uses are as a colorant for lacquers and varnishes and in marker pen inks. Sulfonation of nigrosin yields a water-soluble anionic dye, nigrosin WS (CI 50420, Acid black 2).[2]
^Horst Berneth (2002). "Azine Dyes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_213.pub2. ISBN 3527306730.
^Green FJ (1990). The Sigma-Aldrich Handbook of Dyes, Stains and Indicators. Milwaukee: Aldrich. pp. 513–515. ISBN 0-941633-22-5.
In staining dyes, nigrosin (CI 50415, Solvent black 5) is a mixture of black synthetic dyes made by heating a mixture of nitrobenzene, aniline, and hydrochloric...
can be achieved by smearing the sample onto the slide and then applying nigrosin (a black synthetic dye) or India ink (an aqueous suspension of carbon particles)...
substituted phenazines. Although induline no longer in use, the related dye nigrosin is still produced commercially. Induline is a derivative of the eurhodines...
largely replaced natural dyes. One of the important synthetic blacks is Nigrosin, a mixture of synthetic black dyes (CI 50415, Solvent black 5) made by...
negative staining is typically performed using a black ink fluid such as nigrosin and India ink. The specimen, such as a wet bacterial culture spread on...
black is commonly used for this purpose; other possible additives are nigrosin, Prussian blue, methylene blue, etc. in amounts ranging commonly between...
and effective remediation technology for dyes such as malachite green, nigrosin and basic fuchsin with Aspergillus niger and Phanerochaete chrysosporium...
blue Basic blue 15 44085 triarylmethane 4692-38-0 Nigrosin Solvent black 5 50415 azine 11099-03-9 Nigrosin WS Acid black 2 50420 azine 8005-03-6 Nile blue...
the first synthetic dyes are aminophenazines, these include induline and nigrosin. The symmetrical diaminophenazine is the parent substance of the important...
virus before the appearance of the characteristic rash. Utilising the dye nigrosin, Broadhurst and her team succeeded in staining and therefore making visible...
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