Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 102185-50-2, Whether you call it Bromophenol Red Sodium Salt, 5' -5&quot or -Dibromophenolsulfonphthalein Sodium Salt you can be assured the Bromophenol Red Sodium Salt products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.