Cresol red is a color marker and pH indicator for various laboratory procedures. As a color marker in agarose and polyacrylamide electrophoresis at 1% it runs at 125 base pair size, and as a titrant indicator Cresol Red is yellow below pH 7.2 and purple at pH 8.8 and above. Cresol Red can be used with Taq polymerase because it does not inhibit reactions unlike other dyes and has also been used as a pH sensitive optical fiber sensor.
MW: 382.43 g/mol
Storage/Handling: Store at room temperature.
PubChem Chemical ID: 73013