Analytical Reagents Organic Dyes, Stains and Indicators Dyes, Stains and Indicators 672 ANILINE BLUE ANILINE BLUE C32H25N3S3O9Na2 737.75 28631,66,5 28631665 66,5 2863166,5 28631 66 5 NR 2-1-1 0.000 C,I,42755 Acid Blue 22 13702 37.40 25 G 13701 77.20 100 G Water soluble pH indicator range 10.0-13.0 blue-orange