... main manufacture in China Product: Hydrogen peroxide 27.5%, 35%, 50%CAS No:7722-84-1H.S No:28470000Class:5 ... our Material Safety Data Sheet).Main Technical Indexes:Specification27.5%35%50%ABCABCABCH2O2 concentration(m/m),% ≥27.527.527.535 ... .040.050.080.040.060.12Evaporation residue(m/m),%0.080.100.180.080.100.180.800.120.20stability ... 97.097.093.097.097.093.097.097.093.0 Hydrogen peroxide 27.5%, 35% 50%