HomeCONGO RED INDICATOR PAPERS CONGO RED INDICATOR PAPERS Product Code B-00846 BRAND Bio-Chem Grade CAS No NA Molecular Formula C32H22N6Na2O6S2 Molecular Weight 696.66 H.S.Code 2934.00900 Shelf Life 60 Months Purity 99 % COAs MSDS Physical Properties Physical state at 20 °C Paper Colour Red Color Packaging Specification AppearanceRed colored paper stripspH 3.0-5.2Blue violet to red orange Safety Information and Hazard Symbols Symbol: GHS07Signal Word: Danger