send us an inquiry
LC4521 Phenol red sodium salt
indicator ACS


Order number Packaging Quantity Price €
AC31521 Glass bottle 5 g 24.08


Product information
Grade ACS
Hill Formula C19H13NaO5S
HS Code 2934 99 90
EC number 252-057-8
Molar mass 376.35 g/mol
CAS number 34487-61-1


Chemical and physical data
Molar mass 376.35 g/mol


Safety information
WGK WGK 3 highly 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 3.0
brownish orange – yellow
2nd transition range pH 6.5 – pH 8.0
brownish yellow – red violet
Appearance of solution passes test
Loss on drying (110 °C) ≤ 8.0 %
Transition range (according to ACS) passes test
ACS conforms