Dimethyl sulphate, 98%

Name: Dimethyl sulphate, 98%
Brand: Vaqora Chemicals
SKU: VQ-000844

About Dimethyl sulphate, 98%

Listed under CAS 77-78-1, Dimethyl sulphate is a synthetic reagent available from Vaqora Chemicals (Synthesis grade), specified at 98% purity. The compound has the formula C2H6O4S, corresponding to a molecular weight of 126.13 g/mol. Its systematic (IUPAC) name is dimethyl sulfate. Common synonyms include Sulfuric acid dimethyl ester and dimethylsulfate.

It is supplied as a colourless liquid. Key physical data: a melting point of -32 °C and a boiling point of 188 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis, reaction development, medicinal chemistry and pharmaceutical synthesis. Our customers for this product work in academic and industrial research and textiles and dyeing.

Standard pack sizes are 500 mL and 250 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
Reaction development
Medicinal chemistry
Pharmaceutical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Dimethyl sulphate, 98%
Catalogue No.	VQ-000844
CAS Number	77-78-1
IUPAC name	dimethyl sulfate
Molecular formula	C₂H₆O₄S
Molecular weight	126.13 g/mol
Exact mass	125.9987
Grade	Synthesis
Purity / assay	98%
HSN code	29209099
InChIKey	VAYGXNSJCAHWJZ-UHFFFAOYSA-N
SMILES	COS(=O)(=O)OC
PubChem CID	6497

Physical properties
Physical form	Liquid
Appearance	Colourless liquid
Melting point	-32 °C
Boiling point	188 °C
LogP (XLogP3)	-0.3
H-bond donors / acceptors	0 / 4
TPSA	61 Å²
UN number	UN 1595
Synonyms	Sulfuric acid dimethyl ester, dimethylsulfate, Dimethyl monosulfate, Sulfuric acid, dimethyl ester, Sulfate dimethylique, DMS (methyl sulfate), Dwumetylowy siarczan, Sulfato de dimetilo, Methyle (sulfate de), Sulfate de dimethyle, Dimethylester kyseliny sirove, Sulfate de methyle

Safety & hazard information (GHS)

Corrosive

Toxic

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H330Fatal if inhaled
H341Suspected of causing genetic defects
H350May cause cancer

Precautionary statements: P203, P260, P261, P264, P270, P271, P272, P280, P284, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P318, P320, P321, P330, P333 + P317, P362 + P364, P363, 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 77-78-1

Reference Standard

Dimethyl Sulfate

CAS: 77-78-1
Formula: C₂H₆O₄S
MW: 126.13 g/mol

In stock

Frequently asked questions

What is the CAS number of Dimethyl sulphate, 98%?

The CAS Registry Number of Dimethyl sulphate, 98% is 77-78-1. It is also known as Sulfuric acid dimethyl ester, dimethylsulfate, Dimethyl monosulfate.

What is the molecular formula and molecular weight of Dimethyl sulphate, 98%?

Dimethyl sulphate, 98% has the molecular formula C2H6O4S and a molecular weight of 126.13 g/mol. Its IUPAC name is dimethyl sulfate.

Which grade and pack sizes of Dimethyl sulphate, 98% can I order?

We supply Dimethyl sulphate, 98% in Synthesis (98%) grade, in 500 mL, 250 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Dimethyl sulphate, 98%?

Yes. Every lot of Dimethyl sulphate, 98% 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 Dimethyl sulphate, 98% be shipped internationally?

Yes. Dimethyl sulphate, 98% is classified as hazardous (UN 1595), 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.