{"Abbreviation":["Half mustard"],"Adverse Effects":"Dermatotoxin - Skin burns.","Aliases":["2-Ethylthioethyl chloride","1-Chloro-2-(ethylthio)ethane","Ethyl 2-chloroethyl sulfide","2-(Ethylthio)chloroethane","Sulfide, 2-chloroethyl ethyl","Sulfide, chloroethyl ethyl","Chlordiethylsulfid","2-Chloroethyl ethyl thioether","h-Mg; half-mustard gas","Chlorothiolalcohol","Ethyl β-chloroethyl sulfide","β-Ethylmerkaptoethylchlorid","NSC-10977","Dtxcid807295","CEES","211-742-1","Ethane, 1-chloro-2-(ethylthio)-","Half-mustard gas","h-MG","1-Chloro-2-(ethylsulfanyl)ethane","2-Chloroethyl ethyl sulphide","2-Chloroethyl(ethyl)sulfide","Mfcd00000979","NSC 10977","Half-sulfur mustard","(2-chloroethyl)(ethyl)sulfane","Sulfide, diethyl 2-chloro","HSDB 5744","Einecs 211-742-1","Brn 0635672","1-chloro-2-ethylsulfanyl-ethane","2-CEES","2-chloro-1-ethylthioethane","WLN: G2S2","Schembl136233","orb2945802","Schembl7056148","Chembl3183525","ethyl (2-chloro-ethyl) sulfide","2-Chloroethyl ethyl sulfide, 97%","Albb-008890","NSC10977","Tox21_200911","1-Chloro-2-(ethylsulfanyl)ethane #","SBB049621","Akos000321617","Chloroethyl(ethyl)sulfide, 2-","Chloroethyl(ethyl)sulphide, 2-","HY-W199190","Ncgc00248873-01","Ncgc00258465-01","AS-76116","Cas-693-07-2","FC118989","SY050929","NS00036829","En300-80329","D89330","F358431","T204286"],"Boiling Point":"156 °C","CAS":"693-07-2","Chemical Classes":"Other Classes -\u003e Sulfur Compounds","ChemicalClasses":["thioether"],"Chirality":"achiral","Color/Form":"Colorless liquid","DTXSID":"3027295","Decomposition":"The mustard /stimulant, 2-chloroethyl ethyl sulfide/ decomposes by a mechanism involving formation of dimeric sulfonium ions which transform slowly to 1,4-dithiane as a primary product.","Density":"1.0663 at 20 °C/4 °C g/cm\u003csup\u003e3\u003c/sup\u003e","Erowid Experience Reports":[],"Esters":[],"European Community (EC) Number":"211-742-1","Formating":[],"HMDB ID":"HMDB0245069","HeavyAtomCount":6,"IUPACName":"1-chloro-2-ethylsulfanylethane","InChI":"InChI=1S/C4H9ClS/c1-2-6-4-3-5/h2-4H2,1H3","InChIKey":"GBNVXYXIRHSYEG-UHFFFAOYSA-N","MeSH Headers":[{"Id":"M0098386","Link":"https://id.nlm.nih.gov/mesh/M0098386.html","Name":"2-chloroethyl ethyl sulfide","Ref":35},{"Id":"DescTree","Link":"https://www.nlm.nih.gov/mesh/meshhome.html","Name":"MeSH Tree","Ref":36},{"Id":"PubMed from MeSH","Link":"https://www.nlm.nih.gov/mesh/meshhome.html","Name":null,"Ref":49}],"Mechanism of Action":"Alkylates guanine at the N7 position and adenine at the N3 position producing G-C to A-T transitions during replication and producing apurinic sites which are lethal unless repaired by excision repair systems.","MolecularFormula":"C\u003csub\u003e4\u003c/sub\u003eH\u003csub\u003e9\u003c/sub\u003eClS","MolecularWeight":"124.63 g/mol","Odor":"Mild sulfide","Physical Description":"Colorless liquid with a mild sulfide odor; [HSDB] Clear slightly yellow liquid with a sulfide stench; [Acros Organics MSDS]","PubChemId":12733,"PubChemTitle":"2-Chloroethyl ethyl sulfide","Records":{"UNII":{"Impurities":[]}},"Reddit Experience Reports":[],"RefChem":"86482","RefCount":3,"RefCur":"","References":[{"Name":"Wikipedia","Urls":[{"Link":"https://en.wikipedia.org/wiki/2-Chloroethyl_ethyl_sulfide","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]},{"Name":"Wikidata","Urls":[{"Link":"https://www.wikidata.org/wiki/Q26840793","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]},{"Name":"PubChem","Urls":[{"Link":"https://pubchem.ncbi.nlm.nih.gov/compound/12733","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]},{"Name":"Common Chemistry","Urls":[{"Link":"https://commonchemistry.cas.org/detail?cas_rn=693-07-2","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]},{"Name":"HMDB","Urls":[{"Link":"https://hmdb.ca/metabolites/HMDB0245069","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]},{"Name":"UNII","Urls":[{"Link":"https://gsrs.ncats.nih.gov/ginas/app/ui/substances/5MN267Q6RG","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]},{"Name":"EPA DSSTox","Urls":[{"Link":"https://comptox.epa.gov/dashboard/chemical/details/DTXSID3027295","Name":"2-Chloroethyl ethyl sulfide","Sub":false}]}],"Refs":["National Center for Biotechnology Information. PubChem Compound Summary for CID 12733, 2-Chloroethyl ethyl sulfide. Accessed August 24, 2026. \u003ca href=https://pubchem.ncbi.nlm.nih.gov/compound/12733\u003ehttps://pubchem.ncbi.nlm.nih.gov/compound/12733\u003c/a\u003e","U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. 2-Chloroethyl ethyl sulfide. UNII: 5MN267Q6RG. Global Substance Registration System. Accessed August 24, 2026. \u003ca href=https://gsrs.ncats.nih.gov/ginas/app/beta/substances/5MN267Q6RG\u003ehttps://gsrs.ncats.nih.gov/ginas/app/beta/substances/5MN267Q6RG\u003c/a\u003e"],"SMILES":"CCSCCCl","SaltData":[],"Salts":[],"Solubility":"Slightly soluble in water","StereoisomerData":[],"Stereoisomers":[],"Structure":"\u003csvg xmlns=\"http://www.w3.org/2000/svg\" preserveAspectRatio=\"none\" style=\"display:block\" viewBox=\"0 0 73.015 13.937\"\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 0h74v14H0z\"/\u003e\u003cg class=\"mol\"\u003e\u003cpath d=\"M71.908 10.784 58.71 3.164M58.71 3.164 48.506 9.056M42.367 8.969 32.314 3.164M32.314 3.164l-13.199 7.62M19.115 10.784 7.609 4.142\" class=\"bond\"/\u003e\u003cpath fill=\"#c6c62c\" stroke=\"none\" d=\"M46.973 8.448v.661q-.387-.185-.732-.274-.339-.095-.655-.095-.553 0-.857.214-.298.214-.298.613 0 .327.197.5.202.167.756.274l.411.083q.756.143 1.113.506.363.363.363.971 0 .726-.488 1.101t-1.429.375q-.351 0-.756-.083-.399-.078-.828-.232v-.697q.417.232.81.351.393.113.774.113.583 0 .893-.226.315-.226.315-.649 0-.369-.226-.577-.22-.209-.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 .714.065.363.06.75.191\" class=\"atom\"/\u003e\u003cpath stroke=\"none\" d=\"M4.59 1.155v.715q-.339-.322-.726-.477-.387-.16-.822-.16-.857 0-1.315.524-.453.523-.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 4.477.56 3.275q0-1.209.649-1.899.655-.697 1.792-.697.446 0 .839.119.399.119.75.357M5.61.56h.614v5.209H5.61z\" class=\"atom\"/\u003e\u003cpath stroke=\"#c6c62c\" d=\"m48.506 9.056 5.102-2.946M42.367 8.969 37.34 6.066\" class=\"hi\"/\u003e\u003cpath stroke=\"#1ff01f\" d=\"m7.609 4.142 5.753 3.321\" class=\"hi\"/\u003e\u003c/g\u003e\u003c/g\u003e\u003c/svg\u003e","Title":"2-Chloroethyl ethyl sulfide","UNII":"5MN267Q6RG","Wikidata":"Q26840793","Wikipedia":"2-Chloroethyl_ethyl_sulfide","XLogP":1.8}