Thymol blue
Thymol blue
IUPAC name
4– 5-methyl-2-propan-2-yl-phenol
Other names
α-hydroxy-α,α-bis(5-hydroxycarvacryl)- o-toluenesulfonic acid γ-sultone; thymolsulfonephthalein
Identifiers
CAS number
Properties
Molecular formula
C27H30O5S
Molar mass
466.59 g mol−1
Appearance
Brownish-green crystal powder
Solubility in water
Insoluble
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox references
Thymol blue (thymolsulphonephthalein) is a brownish-green or reddish-brown crystaline powder that is used as an pH indicator. It is insoluble in water but soluble in alcohol [...]