Methyl methanesulphonate, 99%

Name: Methyl methanesulphonate, 99%
Brand: Vaqora Chemicals
SKU: VQ-000893

About Methyl methanesulphonate, 99%

Methyl methanesulphonate (CAS 66-27-3) is a synthetic reagent offered by Vaqora Chemicals (Puriss grade) at a purity of 99%. The compound has the formula C2H6O3S, corresponding to a molecular weight of 110.13 g/mol. Its systematic (IUPAC) name is methyl methanesulfonate. Alternative names: Methanesulfonic acid methyl ester and Methyl mesylate.

In its supplied form it is a colourless liquid. Reported physical data include a boiling point of 202-203 °C and a density of 1.3 g/mL at 25 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis, reaction development, medicinal chemistry and molecular biology workflows. Our customers for this product work in academic and industrial research.

Standard pack sizes are 25 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
Reaction development
Medicinal chemistry
Molecular biology workflows

Industries

Specifications & identifiers

Chemical identifiers
Product name	Methyl methanesulphonate, 99%
Catalogue No.	VQ-000893
CAS Number	66-27-3
IUPAC name	methyl methanesulfonate
Molecular formula	C₂H₆O₃S
Molecular weight	110.13 g/mol
Exact mass	110.0038
Grade	Puriss
Purity / assay	99%
HSN code	29041090
InChIKey	MBABOKRGFJTBAE-UHFFFAOYSA-N
SMILES	COS(=O)(=O)C
PubChem CID	4156

Physical properties
Physical form	Liquid
Appearance	Colourless liquid
Boiling point	202-203 °C
Density	1.3 g/mL at 25 °C
LogP (XLogP3)	-0.4
H-bond donors / acceptors	0 / 3
TPSA	51.8 Å²
UN number	UN 2810
Synonyms	Methanesulfonic acid methyl ester, Methyl mesylate, Methanesulfonic acid, methyl ester, Methylmethanesulfonate, methylmethane sulfonate, as-Dimethyl sulfite, as-Dimethyl sulphite, Methyl methansulfonate, Methyl methansulphonate, Methyl ester of methanesulfonic acid, Methylmethanesulphonate, Methyl methanesulfonic acid

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H340May cause genetic defects
H350May cause cancer
H351Suspected of causing cancer
H361Suspected of damaging fertility or the unborn child
H373May causes damage to organs through prolonged or repeated exposure
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P203, P260, P261, P264, P264 + P265, P270, P271, P272, P273, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P391, P403 + P233

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

Other grades of CAS 66-27-3

Reference Standard

Methyl Methanesulfonate

CAS: 66-27-3
Formula: C₂H₆O₃S
MW: 110.13 g/mol

In stock

Frequently asked questions

What is the CAS number of Methyl methanesulphonate, 99%?

The CAS Registry Number of Methyl methanesulphonate, 99% is 66-27-3. It is also known as Methanesulfonic acid methyl ester, Methyl mesylate, Methanesulfonic acid, methyl ester.

What is the molecular formula and molecular weight of Methyl methanesulphonate, 99%?

Methyl methanesulphonate, 99% has the molecular formula C2H6O3S and a molecular weight of 110.13 g/mol. Its IUPAC name is methyl methanesulfonate.

Which grade and pack sizes of Methyl methanesulphonate, 99% can I order?

We supply Methyl methanesulphonate, 99% in Puriss (99%) grade, in 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Methyl methanesulphonate, 99%?

Yes. Every lot of Methyl methanesulphonate, 99% 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 methanesulphonate, 99% be shipped internationally?

Yes. Methyl methanesulphonate, 99% is classified as hazardous (UN 2810), 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.