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Methyl red (2-(N,N-dimethyl-4-aminophenyl) azobenzenecarboxylic acid) , also called C.I. Acid Red 2, is an indicator dye that turns red in acidic solutions.It is an azo dye, and is a dark red crystalline powder. Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKa of 5.1.ethyl red (2-(N,N-dimethyl-4-aminophenyl) azobenzenecarboxylic acid) , also called C.I. Acid Red 2, is an indicator dye that turns red in acidic solutions.
The methylamine keeps flowing, no matter what. We are not ramping down. We're just getting started. Nothing stops this train.. â Walter White. Methylamine (CH 3 NH 2) is an organic compound. The gas is a derivative of ammonia, but with one H atom replaced by a methyl group.It is the simplest primary amine. It is sold as a solution in methanol, ethanol, THF, and water, or as the anhydrous gas in pressurized metal containers.he methylamine keeps flowing, no matter what. We are not ramping down. We're just getting started. Nothing stops this train.. â Walter White. Methylamine (CH 3 NH 2) is an organic compound. The gas is a derivative of ammonia, but with one H atom replaced by a methyl group.