Select Page


Dimethyl Sulfate

  • Product Name: Dimethyl sulfate
  • Cas No.: 77-78-1
  • Purity: 98.5%
  • MF: C2H6O4S
  • Appearance: Colorless, oily liquid
  • Package: Drum
  • Certificate: ISO
  • Application: It is a highly reactive and toxic chemical compound that is primarily used in the chemical industry for various applications
  • Sample: Available

Send Email To Us


10 + 14 =

Product Detail

Dimethyl sulfate, is an organic compound, chemical formula (CH3O)2SO2, colorless or light yellow transparent liquid, slightly soluble in water, soluble in ethanol, ether, acetone, etc., mainly used as methylation reagent, solvent, can also be used in medicine, pesticides, dyes, spices and other organic synthesis.

Product Parameter

Synonyms Dimethyl sulphate; Sulfuric acid dimethyl ester; Me2SO4; DMSO4; Dimethyl ester of sulfuric acid; Methyl sulfate
Chemical Formula C2H6O4S CAS Number 77-78-1
Molar mass 126.13 g/mol
Appearance Colorless, oily liquid
Odor faint, onion-like
Density 1.33 g/ml, liquid
Melting point −32 °C (−26 °F; 241 K)
Boiling point 188 °C (370 °F; 461 K) (decomposes)
Vapor pressure 0.1 mmHg (20°C)
Refractive index n20/D 1.386(lit.)
Flash point 182 °F
Solubility ethanol: 0.26 g/mL, clear, colorless
Solubility in water Reacts
Stability Methanol, dichloromethane, acetone
log P Stable; combustible. Incompatible with strong oxidizing agents, strong bases including ammonia. Moisture-sensitive.
Storage condition 2-8°C



1. Organic synthesis: Dimethyl sulfate is an important organic synthesis reagent. It can be used to synthesize organic compounds such as esters, ethers, amides and amines. For example, chemical dimethyl sulfate can be used in an esterification reaction, where an alcohol reacts with an acid to form an ester.

2. Catalyst: Dimethyl sulfate can be used as a catalyst or accelerator for some organic reactions. For example, in the esterification of potatoes catalyzed by glycolipase, dimethyl sulfate can increase the reaction rate and yield.

3. Chemical analysis: Dimethyl sulfate can be used to analyze certain reactions in chemistry. For example, it can be used for esterification in analysis, by reacting the alcohol in the sample with dimethyl sulfate to form an ester, and then for quantitative analysis.

4. Oilfield chemistry: Dimethyl sulfate has application value in oilfield chemistry. For example, it can be used as an additive to help improve the performance and stability of oil fluids produced from Wells.

Multiple uses of products

It use in Chemical Manufacturing,Pharmaceutical Industry,Academic and Government Research Institutions,