2.0 2012-07-30 14:55:27 -0600 2015-06-03 17:21:13 -0600 ECMDB21359 M2MDB001756 Sulfur dioxide Sulfur dioxide is the chemical compound with the formula SO2. It is a toxic gas with a pungent, irritating smell. Further oxidation of SO2, usually in the presence of a catalyst such as NO2, forms sulfuric acid (H2SO4), and thus acid rain. Sulfur dioxide is an important compound in winemaking, where it serves as an antibiotic and antioxidant, protecting wine from spoilage by bacteria and oxidation. Its antimicrobial action also helps to minimize volatile acidity. (Wikipedia) Dioxidosulfur Dioxidosulphur Fermenicide liquid Fermenicide powder Fermenticide liquid Oxosulfane oxide Oxosulphane oxide Schwefel(4)-oxid Schwefeldioxid Schwefeldioxyd Siarki dwutlenek SO2 Sulfur dioxide Sulfur dioxide (NF) Sulfur dioxide (SO2) Sulfur oxide Sulfur oxide (SO2) Sulfur superoxide Sulfurous acid anhydride Sulfurous anhydride Sulfurous oxide Sulphur dioxide Sulphur dioxide (NF) Sulphur dioxide (SO2) Sulphur oxide Sulphur oxide (SO2) Sulphur superoxide Sulphurous acid anhydride Sulphurous anhydride Sulphurous oxide [SO2] O2S 64.064 63.961899934 (oxo-λ⁴-sulfanylidene)oxidane sulfur dioxide 7446-09-5 O=S=O InChI=1S/O2S/c1-3-2 RAHZWNYVWXNFOC-UHFFFAOYSA-N Gas Cytosol Extra-organism Periplasm melting_point -72 oC (BP = -10oC) logp 0.32 ChemAxon iupac (oxo-λ⁴-sulfanylidene)oxidane ChemAxon average_mass 64.064 ChemAxon mono_mass 63.961899934 ChemAxon smiles O=S=O ChemAxon formula O2S ChemAxon inchi InChI=1S/O2S/c1-3-2 ChemAxon inchikey RAHZWNYVWXNFOC-UHFFFAOYSA-N ChemAxon polar_surface_area 34.14 ChemAxon refractivity 8.64 ChemAxon polarizability 4.25 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 2 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 3391 Specdb::CMs 173260 Specdb::MsMs 27773 Specdb::MsMs 27774 Specdb::MsMs 27775 Specdb::MsMs 34331 Specdb::MsMs 34332 Specdb::MsMs 34333 Specdb::MsMs 2666350 Specdb::MsMs 2666351 Specdb::MsMs 2666352 1119 1087 C09306 18422 SULFUR-DIOXIDE SO2 Sulfur_dioxide Cysteine sulfinate desulfinase Q46925 CSDA_ECOLI csdA http://ecmdb.ca/proteins/Q46925.xml Outer membrane protein N P77747 OMPN_ECOLI ompN http://ecmdb.ca/proteins/P77747.xml Outer membrane pore protein E P02932 PHOE_ECOLI phoE http://ecmdb.ca/proteins/P02932.xml Outer membrane protein F P02931 OMPF_ECOLI ompF http://ecmdb.ca/proteins/P02931.xml Outer membrane protein C P06996 OMPC_ECOLI ompC http://ecmdb.ca/proteins/P06996.xml 3-Sulfinoalanine + 2 Hydrogen ion > L-Alanine + Sulfur dioxide