Dichlorodiethyl sulfide
| Mustard gas | |
|---|---|
 | |
| Molecular structure via molpic based on CDK |
| Rotamer [] | |
|---|---|
| Conformer structure via 3Dmol.js |
| Physical properties [] | |
|---|---|
| Molecular mass | 159.08 g/mol [1] |
| Density | 1.274 at 68 °F (EPA, 1998) - Denser than water; will sink g/cm3 [1] |
| Appearance | Colorless, oily liquid when pure [1] |
| Odor | Weak, sweet, agreeable odor [1] |
| Melting point | 55 to 57 °F (EPA, 1998) [1] |
| Boiling point | 419 to 423 °F at 760 mmHg (EPA, 1998) [1] |
| Decomposition | In pure aqueous media, most sulfur mustard is hydrolyzed to thiodiglycol and hydrochloric acid. [1] |
| Solubility | In water, 609 mg/L at 25 °C [1] |
| Predicted LogP | 2.1 [1] |
| Structural Identifiers [] | |
|---|---|
| Molecular formula | C4H8Cl2S [1] |
| IUPAC name | 1-chloro-2-(2-chloroethylsulfanyl)ethane [1] |
| SMILES | C(CCl)SCCCl [1] |
| InChI | InChI=1S/C4H8Cl2S/c5-1-3-7-4-2-6/h1-4H2 [1] |
| InChIKey | QKSKPIVNLNLAAV-UHFFFAOYSA-N [1] |
Dichlorodiethyl sulfide (also known as Sulfur Mustard, Mustard gas, Sulfur mustard, Yperite, Senfgas, Iprit, Lost, Bis(2-chloroethyl) sulfide, Schwefel-lost or Yellow cross liquid) is a
Chemistry
Stereochemistry []
Dichlorodiethyl sulfide is a achiral mixture.
See also []
External links []
References []
National Center for Biotechnology Information. PubChem Compound Summary for CID 10461, Dichlorodiethyl sulfide. Accessed August 24, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/10461
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Dichlorodiethyl sulfide. UNII: T8KEC9FH9P. Global Substance Registration System. Accessed August 24, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/T8KEC9FH9P