C4H8Cl2S
159.08 g/mol
OtherDanger
Mustard gas
CAS505-60-2EC684-527-7
Category
Other
Compound Class
Halocarbon
Primary Use
chemical warfare agent
Sulfur mustard, commonly known as mustard gas, is a thick liquid at room temperature that solidifies at 58 °F. It is a chemical warfare agent used as a vesicant, notably during World War I and the Iran-Iraq war, and is heavier than air as a vapor.
chemical warfare agentvesicant chemical warfare agent
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Controlled substances
Substances on this list are tightly controlled under chemical-weapons or precursor regulations. ChemAbout does not facilitate their procurement; this page is a compliance reference only.
Relevant lists:CWC Schedule 1
CAS 505-60-2
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Safety Reference
Danger
H300Fatal if swallowed
H310Fatal in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H330Fatal if inhaled
H335May cause respiratory irritation
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H340May cause genetic defects
H350May cause cancer
H360May damage fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for Mustard gas (CAS 505-60-2) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1-chloro-2-(2-chloroethylsulfanyl)ethane
InChIKey
QKSKPIVNLNLAAV-UHFFFAOYSA-N
SMILES
C(CCl)SCCCl
Synonyms (60)
- 1,1'-Thiobis(2-chloroethane)
- 2,2'-Dichlorodiethyl sulfide
- 2,2'-Dichlorodiethyl sulphide
- 2,2'-Dichloroethyl sulfide
- 2,2'-Dichloroethyl sulphide
- 2-chloroethylsulphide
- Agent THD
- Agent hd
- Bis(2-chloroethyl) sulfide
- Bis(2-chloroethyl)sulphide
- Bis(beta-chloroethyl)sulfide
- Bis(beta-chloroethyl)sulphide
- Di-2-chloroethyl sulfide
- Di-2-chloroethyl sulphide
- Dichlorodiethyl sulfide
- Dichlorodiethylsulphide
- Dichloroethyl sulfide
- Distilled mustard
- Gas, Mustard
- Gelbkreuz
- Gelbkreuz [Czech]
- Iprit
- Kampfstoff ''lost''
- Kampstoff lost
- Lost
- Mustard
- Mustard HD
- Mustard gas
- Mustard vapor
- Mustard, sulfur
- Psoriasin
- S Mustard
- S-Lost
- S-yperite
- SULFUR MUSTARD HD
- Schwefel-lost
- Senfgas
- Sulfide, Di-2-chloroethyl
- Sulfide, Dichlorodiethyl
- Sulfide, bis(2-chloroethyl)
- Sulfur mustard
- Sulfur mustard gas
- Sulphur mustard
- Sulphur mustard gas
- Yellow cross gas
- Yellow cross liquid
- Yperite
- bis(2-chloroethyl)sulfane