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LC5470 Thymol blue
indicator ACS,Reag. Ph Eur


Order number Packaging Quantity Price €
AC32470 Glass bottle 5 g 19.8
AC32470 Glass bottle 25 g 63.45


Product information
Grade ACS,Reag. Ph Eur
Synonyms Thymolsulfonphthalein, TB
Hill Formula C27H30O5S
HS Code 2934 99 90
EC number 200-973-3
Molar mass 466.59 g/mol
CAS number 76-61-9


Chemical and physical data
Solubility 0.11 g/l (25 °C)
Melting point 221 °C (decomposition)
Molar mass 466.59 g/mol
Bulk density 350 kg/m3


Safety information
Storage class 10 – 13 Other liquids and solids
WGK WGK 2 water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


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