Compound Q&A
What is Bromothymol Blue (CAS: 76-59-5)?
Answer
Bromothymol Blue is a pH indicator commonly used to determine acidity or alkalinity in solutions. Its chemical formula is C21H24Br2O5S, and it exhibits a color change from yellow in acidic conditions (pH < 6.0) to blue in basic environments (pH > 7.6). It is a weak acid, water-soluble, and has a molecular weight of 544.3 g/mol. This compound is widely recognized for its role in titration and biological applications due to its sensitivity to pH variations.
About
CAS No
76-59-5
English Name
Bromothymol Blue
Molecular Formula
C27H28Br2O5S
Molecular Weight
624.39 g/mol
SMILES
Brc1c(O)c(cc(c1C)C1(OS(=O)(=O)c2c1cccc2)c1cc(C(C)C)c(c(c1C)Br)O)C(C)C
InChIKey
NUHCTOLBWMJMLX-UHFFFAOYSA-N
Last Updated: 2025-08-25 01:08
