C2Cl2O2
126.92 g/mol
Research ReagentDanger
Oxalyl chloride
CAS79-37-8EC201-200-2
Category
Research Reagent
Compound Class
Halocarbon
Primary Use
Research Compound
Oxalyl chloride is a colorless, sharp-smelling liquid that serves as a diacyl chloride derived from oxalic acid. It is widely employed as a reagent in organic synthesis, particularly for chlorination reactions.
Chlorinating reagent in organic synthesis
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.
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Safety Reference
Danger
H260In contact with water releases flammable gases which may ignite spontaneously
H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H331Toxic if inhaled
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Oxalyl chloride (CAS 79-37-8) is 2917.19.
HS code (international, 6-digit)
2917.19
EU CN code (8-digit)
2917 19 80
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
oxalyl dichloride
InChIKey
CTSLXHKWHWQRSH-UHFFFAOYSA-N
SMILES
C(=O)(C(=O)Cl)Cl
Synonyms (20)
- Ethanedioyl chloride
- Ethanedioyl dichloride
- Oxalic acid chloride
- Oxalic acid dichloride
- Oxalic dichloride
- Oxaloyl chloride
- Oxalyl chloride
- Oxalyl cloride
- Oxalyl dichloride
- oxalic chloride
- oxalyichloride
- oxalyl choride
- oxalylchlorid
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