Methyl oxalyl chloride, 96%

Name: Methyl oxalyl chloride, 96%
Brand: Vaqora Chemicals
SKU: VQ-009154

About Methyl oxalyl chloride, 96%

Vaqora Chemicals supplies Methyl oxalyl chloride, an acylating agent registered under CAS number 5781-53-3, specified at 98% purity. Formula C3H3ClO3, molecular weight 122.51 g/mol. Its systematic (IUPAC) name is methyl 2-chloro-2-oxoacetate. Alternative names: Monomethyl oxalyl chloride and Chloroglyoxylic acid methyl ester.

It is supplied as a liquid. Literature values give a boiling point of 118-120 °C and a density of 1.332 g/mL at 25 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

Typical applications include organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 25 g, 100 g and 500 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Methyl oxalyl chloride, 96%
Catalogue No.	VQ-009154
CAS Number	5781-53-3
IUPAC name	methyl 2-chloro-2-oxoacetate
Molecular formula	C₃H₃ClO₃
Molecular weight	122.51 g/mol
Exact mass	121.9771
Purity / assay	98%
HSN code	29332990
InChIKey	ZXUQEPZWVQIOJE-UHFFFAOYSA-N
SMILES	COC(=O)C(=O)Cl
PubChem CID	79846

Physical properties
Physical form	Liquid
Appearance	Liquid
Boiling point	118-120 °C
Density	1.332 g/mL at 25 °C
LogP (XLogP3)	1.1
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
Synonyms	Monomethyl oxalyl chloride, Chloroglyoxylic acid methyl ester, Methyl (chloroformyl)formate, Methyl chloroglyoxalate,,Methyl chlorooxoacetate, Methyl chlorooxoacetate, Methyl chloroglyoxylate, Acetic acid, chlorooxo-, methyl ester, methoxalyl chloride, Acetic acid, 2-chloro-2-oxo-, methyl ester, Methyl (Chlorocarbonyl)formate, methyl 2-chloro-2-oxo-acetate, methyl chloro(oxo)acetate

Safety & hazard information (GHS)

Flammable

Corrosive

Signal word: Danger

Hazard statements

H226Flammable liquid and vapor
H314Causes severe skin burns and eye damage

Precautionary statements: P210, P233, P240, P241, P242, P243, P260, P264, P280, P301 + P330 + P331, P302 + P361 + P354, P303 + P361 + P353, P304 + P340, P305 + P354 + P338, P316, P321, P363, P370 + P378, P403 + P235, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Methyl oxalyl chloride, 96%?

The CAS Registry Number of Methyl oxalyl chloride, 96% is 5781-53-3. It is also known as Monomethyl oxalyl chloride, Chloroglyoxylic acid methyl ester, Methyl (chloroformyl)formate.

What is the molecular formula and molecular weight of Methyl oxalyl chloride, 96%?

Methyl oxalyl chloride, 96% has the molecular formula C3H3ClO3 and a molecular weight of 122.51 g/mol. Its IUPAC name is methyl 2-chloro-2-oxoacetate.

Which grade and pack sizes of Methyl oxalyl chloride, 96% can I order?

We supply Methyl oxalyl chloride, 96% in (98%) grade, in 25 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Methyl oxalyl chloride, 96%?

Yes. Every lot of Methyl oxalyl chloride, 96% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Methyl oxalyl chloride, 96% be shipped internationally?

Yes. Methyl oxalyl chloride, 96% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.