Thymol Blue

grade

ACS reagent

Quality Level

200

form

powder

clarity of soln

passes test

technique(s)

titration: suitable

visual transition interval

1.2-2.8 red to yellow(acid range)
1.2-2.8 red to yellow
8.0-9.2 yellow to blue(alkaline range)
8.0-9.2 yellow to blue

mp

221-224 °C (dec.) (lit.)

solubility

ethanol: 0.1% clear

density

0.979 g/cm³

λ_max

376 nm (2nd)
594 nm

ε (extinction coefficient)

≥12000 at 298-302 nm in 0.1 M NaOH at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

CC(C)c1cc(c(C)cc1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C(C)C)c(O)cc4C

InChI

1S/C27H30O5S/c1-15(2)19-13-22(17(5)11-24(19)28)27(21-9-7-8-10-26(21)33(30 31)32-27)23-14-20(16(3)4)25(29)12-18(23)6/h7-16 28-29H 1-6H3

InChI key

PRZSXZWFJHEZBJ-UHFFFAOYSA-N