Methyl oxalyl chloride, 97%

Description

CAS: 5781-53-3 | C3H3ClO3 | 122.504 g/mol

Methyl oxalyl chloride is used as a synthetic reagent. It serves as a reagent in the synthesis of fused coumarins, substituted isoxazoles and heterocycles. Further, it is used in intramolecular Wittig reactions, and iron-mediated cleavage of C-C bonds.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Methyl oxalyl chloride is used as a synthetic reagent. It serves as a reagent in the synthesis of fused coumarins, substituted isoxazoles and heterocycles. Further, it is used in intramolecular Wittig reactions, and iron-mediated cleavage of C-C bonds.

Solubility
Miscible with water.

Notes
Moisture sensitive. Incompatible with water, oxidizing agents, alcohols and bases.

Specifications

Chemical Identifiers

• CAS: 5781-53-3
• Molecular Formula: C3H3ClO3
• Molecular Weight (g/mol): 122.504
• MDL Number: MFCD00000705
• InChI Key: ZXUQEPZWVQIOJE-UHFFFAOYSA-N
• Synonym: methyl oxalyl chloride, methyl chloroglyoxylate, methyl chlorooxoacetate, chloroglyoxylic acid methyl ester, acetic acid, chlorooxo-, methyl ester, methyl chlorocarbonyl formate, methyloxalylchloride, methyl chloro oxo acetate, methylchlorooxoacetate, methyl 2-chloro-2-oxo-acetate
• PubChem CID: 79846
• IUPAC Name: methyl 2-chloro-2-oxoacetate
• SMILES: COC(=O)C(=O)Cl

• Density: 1.332
• Boiling Point: 115°C to 118°C
• Flash Point: 46°C (114°F)
• Odor: Acrid
• Refractive Index: 1.419
• Quantity: 5 g
• UN Number: UN2920
• Beilstein: 1071541
• Sensitivity: Moisture sensitive
• Solubility Information: Miscible with water.
• Formula Weight: 122.51
• Percent Purity: 97%
• Chemical Name or Material: Methyl oxalyl chloride

Safety and Handling

Hazard Category	H226-H302-H314
Hazard Statement	GHS H Statement H301-H314-H318-H226 Toxic if swallowed. Causes severe skin burns and eye damage. Causes serious eye damage. Flammable liquid and vapor.
Precautionary Statement	P210-P233-P240-P241-P242-P243-P260-P264b-P270-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P370+P378q-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE LIQUIDS, FLAMMABLE, N.O.S.
EINECSNumber	227-307-4
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only