Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 632-69-9, Whether you call it Rose Bengal, Rose Bengal Sodium , Acid Red 94 , Aka105(1) , Bengal Rose B Sodium Salt or 4 -5 -6 -7-Tetrachloro-2 -4 -5 -7-tetraiodofluorescein Sodium Salt you can be assured the Rose Bengal products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.