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Synonyms: Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y
Congo red is the sodium salt, It is a secondary diazo dye. Congo red is water-soluble, yielding a red colloidal solution; its solubility is better in organic solvents such as ethanol.
C 5711 (OTTO) Congo red, certified Cas 573-58-0 - used to stain microscopic preparates, especially as a cytoplasm and erythrocyte stain.
WGK Germany 3
Certificate Of Analysis
(For eg. B 1615-0108)
Other Documents
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Chrysodine Y
637-01-4
N,N,N′,N′-Tetramethyl-p-phenylenediamine dihydrochloride, 99%
4438-16-8
Chrysodine R
989-38-8
Rhodamine 6G, dye content, 99%
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