U.S. National Library of Medicine
A group of dipyridinium chloride derivatives that are used as oxidation-reduction indicators. The general formula is 1,1'-di-R-4,4'-bipyridinium chloride, where R = methyl, ethyl, benzyl or, betaine.
The numerical value of viologens in Chaldean Numerology is: 4
The numerical value of viologens in Pythagorean Numerology is: 1
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