{"Abbreviation":["O-mustard"],"Aliases":["O-Mustard","Agent T","O-Mustard T","Ether, bis(2-chloroethylthioethyl)","NSC 58818","2-2'-Di(3-chloroethylthio)-diethyl ether","Bis(β-chloroethylthioethyl) ether","Ethane, 1,1'-oxybis(2-(2-chloroethyl)thio-","Brn 1752929","bis(2-chloroethylthioethyl)ether","HSDB 8398","3-01-00-02126","Ethane, 1,1'-oxybis[2-(2-chloroethyl)thio-","Dtxcid9044162","NSC-58818","Ether, bis(2-(2-chloroethylmercapto)ethyl)","Ether, bis[2-(2-chloroethylmercapto)ethyl]","Dimustard ether","Schembl377254","HSDB-8398","NSC58818","bis-[(2-Chloroethylthio)ethy] ether","Bis(2-(2-chloroethylthio)ethyl)ether","DB-307651","NS00121479","Ethane,1'-oxybis[2-[(2-chloroethyl)thio]-","Ethane, 1,1'-oxybis(2-((2-chloroethyl)thio)-","1-Chloro-2-[(2-(2-[(2-chloroethyl)sulfanyl]ethoxy)ethyl)sulfanyl]ethane #","1-chloro-2-[(2-{2-[(2-chloroethyl)sulfanyl]ethoxy}ethyl)sulfanyl]ethane"],"Boiling Point":"Decomposes","CAS":"63918-89-8","ChemicalClasses":["thioether"],"Chirality":"achiral","Color/Form":"Sulfur mustards are colorless when pure, but are typically yellow to brown oily liquids. /Sulfur mustards/","DTXSID":"7074799","Decomposition":"When heated to decomposition it emits very toxic fumes of SOx and Cl-","Density":"1.24 g/mL at 25 °C g/cm\u003csup\u003e3\u003c/sup\u003e","Erowid Experience Reports":[],"Esters":[],"Formating":[],"HMDB ID":"HMDB0255862","HeavyAtomCount":13,"Human Toxicity Values":"The lethal dose is about 100 mg/kg or 1 to 1.5 teaspoons of liquid. /Sulfur mustard/","IUPACName":"1-(2-chloroethylsulfanyl)-2-[2-(2-chloroethylsulfanyl)ethoxy]ethane","InChI":"InChI=1S/C8H16Cl2OS2/c9-1-5-12-7-3-11-4-8-13-6-2-10/h1-8H2","InChIKey":"FWVCSXWHVOOTFJ-UHFFFAOYSA-N","MeSH Headers":[],"Melting Point":"45 °C","MolecularFormula":"C\u003csub\u003e8\u003c/sub\u003eH\u003csub\u003e16\u003c/sub\u003eCl\u003csub\u003e2\u003c/sub\u003eOS\u003csub\u003e2\u003c/sub\u003e","MolecularWeight":"263.2 g/mol","Non-Human Toxicity Values":"LC50 Mice inhalation 1650 mg/cu m/ 10 min","Odor":"Garlic-like odor","Physical Description":"This is a chemical weapon related to sulfur mustard (mustard gas) and is expected to react in a similar fashion. See the chemical datasheet for sulfur mustard for more information.","PubChemId":45452,"PubChemTitle":"O-Mustard","Records":{"UNII":{"Impurities":[]}},"Reddit Experience Reports":[],"RefChem":"855298","RefCount":3,"RefCur":"","References":[{"Name":"Wikipedia","Urls":[{"Link":"https://en.wikipedia.org/wiki/O-mustard","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]},{"Name":"Wikidata","Urls":[{"Link":"https://www.wikidata.org/wiki/Q4222236","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]},{"Name":"PubChem","Urls":[{"Link":"https://pubchem.ncbi.nlm.nih.gov/compound/45452","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]},{"Name":"Common Chemistry","Urls":[{"Link":"https://commonchemistry.cas.org/detail?cas_rn=63918-89-8","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]},{"Name":"HMDB","Urls":[{"Link":"https://hmdb.ca/metabolites/HMDB0255862","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]},{"Name":"UNII","Urls":[{"Link":"https://gsrs.ncats.nih.gov/ginas/app/ui/substances/BG8SN2S6WA","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]},{"Name":"EPA DSSTox","Urls":[{"Link":"https://comptox.epa.gov/dashboard/chemical/details/DTXSID7074799","Name":"Bis(2-chloroethylthioethyl) ether","Sub":false}]}],"Refs":["National Center for Biotechnology Information. PubChem Compound Summary for CID 45452, Bis(2-chloroethylthioethyl) ether. Accessed August 24, 2026. \u003ca href=https://pubchem.ncbi.nlm.nih.gov/compound/45452\u003ehttps://pubchem.ncbi.nlm.nih.gov/compound/45452\u003c/a\u003e","U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Bis(2-chloroethylthioethyl) ether. UNII: BG8SN2S6WA. Global Substance Registration System. Accessed August 24, 2026. \u003ca href=https://gsrs.ncats.nih.gov/ginas/app/beta/substances/BG8SN2S6WA\u003ehttps://gsrs.ncats.nih.gov/ginas/app/beta/substances/BG8SN2S6WA\u003c/a\u003e"],"Reported Fatal Dose":"The lethal dose is about 100 mg/kg or 1 to 1.5 teaspoons of liquid. /Sulfur mustard/","SMILES":"C(CSCCCl)OCCSCCCl","SaltData":[],"Salts":[],"Solubility":"Sulfur mustards, including Agent T (O-Mustard), do not dissolve much in water, but dissolve easily in oils, fats, and other solvents. /Sulfur mustards/","StereoisomerData":[],"Stereoisomers":[],"Structure":"\u003csvg xmlns=\"http://www.w3.org/2000/svg\" preserveAspectRatio=\"none\" style=\"display:block\" viewBox=\"0 0 168.504 14.044\"\u003e\u003crect width=\"100%\" height=\"100%\" fill=\"#fff\"/\u003e\u003cdesc\u003eGenerated by the Chemistry Development Kit (http://github.com/cdk)\u003c/desc\u003e\u003cg fill=\"#1ff01f\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\".8\"\u003e\u003cpath fill=\"#fff\" stroke=\"none\" d=\"M0 0h169v15H0z\"/\u003e\u003cg class=\"mol\"\u003e\u003cpath d=\"M71.908 10.892 58.71 3.272M58.71 3.272 48.506 9.163M42.367 9.076 32.314 3.272M32.314 3.272l-13.199 7.62M19.115 10.892 7.609 4.249M71.908 10.892l9.587-5.535M88.715 5.355l9.59 5.537M98.305 10.892l13.198-7.62M111.503 3.272l10.053 5.804M127.696 9.163l10.203-5.891M137.899 3.272l13.199 7.62M151.098 10.892l9.797-5.657\" class=\"bond\"/\u003e\u003cpath fill=\"#c6c62c\" stroke=\"none\" d=\"M46.973 8.555v.661q-.387-.185-.732-.274-.339-.095-.655-.095-.553 0-.857.214-.298.214-.298.613 0 .328.197.5.202.167.756.274l.411.083q.756.143 1.113.506.363.364.363.971 0 .726-.488 1.101t-1.429.375q-.351 0-.756-.083-.399-.078-.828-.232v-.697q.417.232.81.351.393.114.774.114.583 0 .893-.227.315-.226.315-.649 0-.369-.226-.577-.22-.208-.738-.31l-.411-.083q-.756-.149-1.095-.47-.339-.322-.339-.893 0-.667.464-1.048.47-.381 1.292-.381.351 0 .714.066.363.059.75.19\" class=\"atom\"/\u003e\u003cpath stroke=\"none\" d=\"M4.59 1.262v.715q-.339-.322-.726-.476-.387-.161-.822-.161-.857 0-1.315.524-.453.524-.453 1.518 0 .988.453 1.512.458.524 1.315.524.435 0 .822-.155.387-.161.726-.476v.702q-.357.244-.756.363-.393.119-.833.119-1.137 0-1.792-.69Q.56 4.584.56 3.382q0-1.209.649-1.899.655-.697 1.792-.697.446 0 .839.119.399.119.75.357M5.61.667h.614v5.209H5.61z\" class=\"atom\"/\u003e\u003cpath fill=\"#ff0d0d\" stroke=\"none\" d=\"M85.109 1.227q-.738 0-1.172.553-.429.548-.429 1.495 0 .946.429 1.494.434.548 1.172.548.739 0 1.167-.548t.429-1.494q0-.947-.429-1.495-.428-.553-1.167-.553m0-.548q1.054 0 1.679.708.631.703.631 1.888 0 1.178-.631 1.887-.625.702-1.679.702-1.053 0-1.684-.702-.631-.703-.631-1.887t.631-1.888q.631-.708 1.684-.708\" class=\"atom\"/\u003e\u003cpath fill=\"#c6c62c\" stroke=\"none\" d=\"M126.163 8.555v.661q-.387-.185-.733-.274-.339-.095-.654-.095-.554 0-.858.214-.297.214-.297.613 0 .328.196.5.202.167.756.274l.411.083q.756.143 1.113.506.363.364.363.971 0 .726-.488 1.101t-1.429.375q-.351 0-.756-.083-.399-.078-.827-.232v-.697q.417.232.809.351.393.114.774.114.584 0 .893-.227.316-.226.316-.649 0-.369-.226-.577-.221-.208-.739-.31l-.41-.083q-.756-.149-1.096-.47-.339-.322-.339-.893 0-.667.464-1.048.471-.381 1.292-.381.351 0 .715.066.363.059.75.19\" class=\"atom\"/\u003e\u003cpath stroke=\"none\" d=\"M166.311 1.155v.715q-.339-.322-.726-.477-.387-.16-.822-.16-.857 0-1.316.524-.452.523-.452 1.518 0 .988.452 1.512.459.524 1.316.524.435 0 .822-.155.387-.161.726-.476v.702q-.357.244-.756.363-.393.119-.834.119-1.137 0-1.791-.69-.649-.697-.649-1.899 0-1.209.649-1.899.654-.697 1.791-.697.447 0 .84.119.399.119.75.357m1.02-.595h.613v5.209h-.613z\" class=\"atom\"/\u003e\u003cpath stroke=\"#c6c62c\" d=\"m48.506 9.163 5.102-2.945M42.367 9.076 37.34 6.174\" class=\"hi\"/\u003e\u003cpath stroke=\"#1ff01f\" d=\"m7.609 4.249 5.753 3.321\" class=\"hi\"/\u003e\u003cpath stroke=\"#ff0d0d\" d=\"m81.495 5.357-4.793 2.767M88.715 5.355l4.795 2.768\" class=\"hi\"/\u003e\u003cpath stroke=\"#c6c62c\" d=\"m121.556 9.076-5.027-2.902M127.696 9.163l5.102-2.945\" class=\"hi\"/\u003e\u003cpath stroke=\"#1ff01f\" d=\"m160.895 5.235-4.898 2.828\" class=\"hi\"/\u003e\u003c/g\u003e\u003c/g\u003e\u003c/svg\u003e","Title":"Bis(2-chloroethylthioethyl) ether","UNII":"BG8SN2S6WA","Wikidata":"Q4222236","Wikipedia":"O-mustard","XLogP":2.6}