Bis(chloromethyl) ether Glycerol-1,2-carbonate Dimethyl sulfide Simmons–Smith reaction Tenofovir disoproxil Mustard gas National Emissions Standards for Hazardous Air Pollutants Cyproterone acetate Tissue-type plasminogen activator Vitamin B12 total synthesis Chemical weapons in World War I Highly hazardous chemical California Proposition 65 list of chemicals