Congo Red Indicator Solution，pH 3.0-5.2

Product Introduction:

Congo red indicator (pH3.0-pH5.2) is a single acid-base indicator.

Congo red, molecular weight 696.88. It is a weak alkaline indicator with molecular formula of C32H22N6Na2O6S2 and CAS number of 573-58-0. The Congo red indicator is discolored from pH3.0 to pH5.2.

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