. 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. 19'2 Biological Stains r20 mercurochrome ixo This is a proprietary name applied to a fluorescein derivative closely related to eosin: dibromo-hydroxy-mercuri-fluorescein. Br Br NaO I \/V_o_ J. C2oH806HgBr2Na2; Mol. Wt. The dye has been widely advertised as a disinfectant especially for the skin; and there has been considerable discussion in the literature as to its actual value for the purpose. It has staining properties
. 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. 19'2 Biological Stains r20 mercurochrome ixo This is a proprietary name applied to a fluorescein derivative closely related to eosin: dibromo-hydroxy-mercuri-fluorescein. Br Br NaO I \/V_o_ J. C2oH806HgBr2Na2; Mol. Wt. The dye has been widely advertised as a disinfectant especially for the skin; and there has been considerable discussion in the literature as to its actual value for the purpose. It has staining properties not unlike an erythrosin, or phloxine. Baldwin (1928) states that it may be used in 2% aqueous solution in place of eosin, especially for blood woxk and for tissues after Zenker fixation; thus employed it is more intense than eosin and has a stronger affinity for cytoplasmic structures. Detwiler and McKennon (1929) employ it in concentration of from 1:500,000 to 1:1,000,000 as a fungicidal agent for the treatment of amphibian embryos. Conklin (1934) recommends it as a counterstain to malachite green in the Wirtz spore stain for bacteria. R25 ERYTHROSIN, YELLOWISH C. I. NO. 77I Synonyms: Erythrosin R or G. Pyrosin J. Dianthine G. lod- eosin G. This is a fluorescein in which there are two substituent iodine atoms instead of four bromine atoms as in yellowish eosin. I I NaO I I 0_/\ O c= COONa C2oH805l2Na2; Mol. Wt. {An acid dye; absorption maximum about ). 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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