Thymol blue ACS

RT

466, 6

Brownish-green solid

Thymol Blue is a pH indicator, which is yellow/orange at low pH and blue in color at high pH

CAS Number:
76-61-9

Visual Transition Interval  
1.2 - 2.8, red to yellow (acid range)
8.0 - 9.2, yellow to blue (alkaline range)

Melting Point:
221-224 °C (dec.) (lit.)

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.