. Biological stains; a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy); Stains and Staining; Dyes. CH, penta-methyl pararosanilin C24H28N3CI; Mol Wt. CH, CI. hexa-methyl pararosanilin (crystal violet) C25H30N3CI; Mol. Wt. {Basic dyes; absorption maxima: 583-587 in 90% alcohol) Solubility at 26°C: in water ; in alcohol In the case of these compounds, as in the case of other series of homologs differing in extent of methylation, the shade is deepened by the introduction of each methyl group. Hence th
. Biological stains; a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy); Stains and Staining; Dyes. CH, penta-methyl pararosanilin C24H28N3CI; Mol Wt. CH, CI. hexa-methyl pararosanilin (crystal violet) C25H30N3CI; Mol. Wt. {Basic dyes; absorption maxima: 583-587 in 90% alcohol) Solubility at 26°C: in water ; in alcohol In the case of these compounds, as in the case of other series of homologs differing in extent of methylation, the shade is deepened by the introduction of each methyl group. Hence the various mixtures known to the trade as methyl violet vary from reddish to bluish violets according to the relative amounts of the more and the less completely methylated compounds present in the mixture. This is the significance of the various shade designations listed above, R's indicating the reddish shades, and B's the bluish shades. Of these various shades the bluer ones seem to be best for biological. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Conn, H. J. (Harold Joel), 1886-1975. Geneva, N. Y. , Biotech Publications
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