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U.S. Department of Health and Human Services


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BAM R44: Methyl Red Indicator

January 2001

Bacteriological Analytical Manual 

Methyl Red Indicator


Methyl red0.10 g
Ethanol, 95%300 ml
Distilled water to make 500 ml



Dissolve methyl red in 300 ml ethanol. Bring volume to 500 ml with distilled water.


Original Source: Bacteriological Analytical Manual, 8th Edition, Revision A, 1998.