Exaxol Congo Red TS, (USP Test Solution)

Congo Red TS (USP) by Exaxol, catalog numbers C1066-100 and C1066-500, is a USP TS congo red indicator solution in alcohol-water per usp, changing from blue at about pH 3.0 to red at 5.2. Available in 100 mL and 500 mL from MBP, a registered vendor to many research institutes across the USA.