SODIUM SULFITE(cas no.7757-83-7) hair dye intermediate ,96% purity, strict quality control,GMP, ... Reagents;Disulfide Bridge Cleavage ReagentsSynthetic ReagentsMol File:7757-83-7.mol Sodium sulfite Usage And SynthesisChemical Propertieswhite crystals or ... dihydrochloride Chemical Propertiesmp 222-224°CCAS DataBase Reference66422-95-5(CAS DataBase Reference)EPA Substance Registry SystemEthanol, 2-(2,4- ...