All Photos(1)

1.08176

Supelco

Thymol blue

indicator ACS,Reag. Ph Eur

Synonym(s):
Thymol blue, Thymolsulfonphthalein
Empirical Formula (Hill Notation):
C27H30O5S
CAS Number:
Molecular Weight:
466.59
MDL number:
EC Index Number:
200-973-3

Quality Level

grade

ACS reagent

Agency/Method

reag. Ph. Eur.

mp

221 °C (decomposition)

bulk density

350 kg/m3

storage temp.

15-25°C

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

Related Categories

Analysis Note

1st transition range: pH 1.2 - pH 2.8violet red - brownish yellow
2nd transition range: pH 7.8 - pH 9.5greenish yellow - blue
Appearance of solution: passes test
Loss on drying (110 °C): ≤ 3
Transition range (according to ACS): passes test
Sensitivity test: passes test

Storage Class Code

11 - Combustible Solids

WGK Germany

WGK 3

Flash Point F

Not applicable

Flash Point C

Not applicable

Certificate of Analysis

Certificate of Origin

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service