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Dimethyl Sulfate

Dimethyl Sulfate

CAS Number: 77-78-1

Molecular Formula: C2H6O4S

Purity: Dimethyl Sulfate 98% purity

About Dimethyl Sulfate

Dimethyl sulfate (CAS 77-78-1) serves as a critical methylating agent in the production of high purity fine chemicals, where General Industry purity 98% is essential for US-based manufacturers balancing high reaction yields with the complexities of the Section 301 tariff landscape and global sourcing shifts. DMS is wit...

Synonyms

  • dimethyl sulfate
  • dimethyl sulfate, 3H-labeled
  • dimethylsulfate
  • DIMETHYL SULFATE
  • 77-78-1
View all

Dimethyl Sulfate Specifications

CAS Number
77-78-1
Molecular Formula
C2H6O4S
Molecular Weight
126.13 g/mol
IUPAC Name
dimethyl sulfate
Canonical SMILES
COS(=O)(=O)OC
InChI Key
VAYGXNSJCAHWJZ-UHFFFAOYSA-N
InChI
InChI=1S/C2H6O4S/c1-5-7(3,4)6-2/h1-2H3
HSN No
29202910
melting_point
-25.15 °F (EPA, 1998)
boiling_point
About 370 °F (with decomposition) (EPA, 1998)
solubility
3 % at 64 °F (NIOSH, 2024)
density
1.3283 at 68 °F (EPA, 1998) - Denser than water; will sink
logP
0.16
Molecular Weight
126.13 g/mol
Purity
Dimethyl Sulfate 98% purity

Methylating Agent

A powerful and versatile reagent used in organic synthesis for the methylation of carboxylic acids, alcohols, phenols, amines, and thiols to produce high-value intermediates

Pharmaceutical Intermediate

A critical building block employed in the manufacturing of various drugs and active pharmaceutical ingredients (APIs)

Dye and Pigment Intermediate

A key component used to synthesize specialized dyes and organic pigments by facilitating the formation of complex structures

Surfactant and Fabric Softener Raw Material

A primary reagent used to prepare quaternary ammonium salts, which serve as essential active ingredients in household and commercial fabric softeners

Agrochemical Intermediate

A functionalized chemical used as a precursor in the production of agricultural chemicals and crop protection products

Laboratory Reagent

A high-purity chemical used in molecular biology and genomics research for DNA sequencing, RNA secondary structure determination, and analyzing protein-DNA interactions.

  1. dimethyl sulfate
  2. dimethyl sulfate, 3H-labeled
  3. dimethylsulfate
  4. DIMETHYL SULFATE
  5. 77-78-1

Dimethyl Sulfate FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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