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CAS Number: 77-78-1
Sum Formula: C2H6O4S
Molar Mass: 126.1 g/mol
German Synonyms: Dimethylsulfat | Schwefelsäuredimethylester
English Synonyms: Dimethylsulfate | Sulfuric acid dimethyl ester
EC Index Number: 016-023-00-4
EC Number: 201-058-1
Properties: Take notice of special rules
Explosion Group: IIA (estimated)
Structural Formula Sulfuric acid dimethyl ester

Disclaimer: The CLP/GHS classification is not regularly updated in Chemsafe. For up-to-date information, please use the ECHA database. ( https://echa.europa.eu/en/information-on-chemicals )

GHS Hazard and Category:
  • Carc. 1B: carcinogenicity, category 1B
  • Muta. 2: germ cell mutagenicity, category 2
  • Acute Tox. 2: acute toxicity by inhalation, category 2
  • Acute Tox. 3: acute oral toxicity, category 3
  • Skin Corr. 1B: skin corrosion, category 1B
  • Skin Sens. 1: skin sensitization, category 1
GHS Pictogram:
pictogram toxic
pictogram health hazard
pictogram corrosive





GHS Signal Word: Danger
GHS Hazard Statement:
  • H350: May cause cancer .
  • H341: Suspected of causing genetic defects .
  • H330: Fatal if inhaled.
  • H301: Toxic if swallowed.
  • H314: Causes severe skin burns and eye damage.
  • H317: May cause an allergic skin reaction.

Boiling point
1 1941 Berger, H. 1013.25 hPa 188 °C UTI: 15-873-10938/0-39
UTI: 15-873-10938/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 188 °C 1013.25 hPa
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
2 1950 1013.25 hPa 188 °C UTI: 1-873-10928/0-39
UTI: 1-873-10928/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 188 °C 1013.25 hPa
Bibliographic data
Title Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year 1950
Journal Title The Factory Mutual Engineering Division;Boston, Ma
Publisher The Factory Mutual Engineering Division
Publisher City Boston
Language ENGL
3 1951 Oehley, E. 1013.25 hPa 188.5 °C UTI: 13-873-10934/0-39
UTI: 13-873-10934/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 188.5 °C 1013.25 hPa
Bibliographic data
Title Stoffdaten
Author Oehley, E.
Year 1951
Publisher Farbwerke Hoechst, Techn. Abt. Farben-Gruppe
Language GERM
4 1963 Nabert, K.; Schön, G. 1013.25 hPa 188 °C UTI: 1000-873-10959/0-39
UTI: 1000-873-10959/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 188 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Density
1 1941 Berger, H. 1013.25 hPa 20 °C 1.332 g/cm3 UTI: 15-873-10939/0-39
UTI: 15-873-10939/0-39;
Line no Density Temperature Pressure
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • at atmospheric pressure and room temperature
  • property of pure substance
  • at atmospheric pressure and room temperature
1 1.332 g/cm3 20 °C 1013.25 hPa
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
2 1950 1013.25 hPa 20 °C 1.332 g/cm3 UTI: 1-873-10929/0-39
UTI: 1-873-10929/0-39;
Line no Density Temperature Pressure
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • at atmospheric pressure and room temperature
  • property of pure substance
  • at atmospheric pressure and room temperature
1 1.332 g/cm3 20 °C 1013.25 hPa
Bibliographic data
Title Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year 1950
Journal Title The Factory Mutual Engineering Division;Boston, Ma
Publisher The Factory Mutual Engineering Division
Publisher City Boston
Language ENGL
3 1951 Oehley, E. 1.328 g/cm3 ... 1.332 g/cm3 UTI: 13-873-10935/0-39
UTI: 13-873-10935/0-39;
Line no Density
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
1 1.328 g/cm3 ... 1.332 g/cm3
Bibliographic data
Title Stoffdaten
Author Oehley, E.
Year 1951
Publisher Farbwerke Hoechst, Techn. Abt. Farben-Gruppe
Language GERM
4 1963 Nabert, K.; Schön, G. 1013.25 hPa 20 °C 1.33 g/cm3 UTI: 1000-873-10960/0-39
UTI: 1000-873-10960/0-39;
Line no Density Temperature Pressure
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • recommended value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • recommended value
  • at atmospheric pressure and room temperature
1 1.33 g/cm3 20 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Melting point
1 1941 Berger, H. -27 °C UTI: 15-873-10937/0-39
UTI: 15-873-10937/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -27 °C
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
2 1950 -26.7 °C UTI: 1-873-10927/0-39
UTI: 1-873-10927/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -26.7 °C
Bibliographic data
Title Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year 1950
Journal Title The Factory Mutual Engineering Division;Boston, Ma
Publisher The Factory Mutual Engineering Division
Publisher City Boston
Language ENGL
3 1951 Oehley, E. -27 °C UTI: 13-873-10933/0-39
UTI: 13-873-10933/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -27 °C
Bibliographic data
Title Stoffdaten
Author Oehley, E.
Year 1951
Publisher Farbwerke Hoechst, Techn. Abt. Farben-Gruppe
Language GERM
4 1963 Nabert, K.; Schön, G. 1013.25 hPa -32 °C UTI: 1000-873-10962/0-39
UTI: 1000-873-10962/0-39;
Line no Melting temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • recommended value
  • at atmospheric pressure
  • saturated
1 -32 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Relative gas density
1 1941 Berger, H. 4.35 UTI: 15-873-10940/0-39
UTI: 15-873-10940/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 4.35
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
2 1950 4.35 UTI: 1-873-10930/0-39
UTI: 1-873-10930/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 4.35
Bibliographic data
Title Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year 1950
Journal Title The Factory Mutual Engineering Division;Boston, Ma
Publisher The Factory Mutual Engineering Division
Publisher City Boston
Language ENGL
3 1963 Nabert, K.; Schön, G. 4.35 UTI: 1000-873-10961/0-39
UTI: 1000-873-10961/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 4.35
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Solubility in water
1 2009 Physikalisch-Technische Bundesanstalt (PTB) 18 °C 28 g/l UTI: 228-873-10955/0-39
UTI: 228-873-10955/0-39;
Line no Solubility in water Temperature
  • defined value
  • property of pure substance
  • property of pure substance
1 28 g/l 18 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2009
Title Wasserlöslichkeit
Database PTB
Publisher Datenbank PTB-Lab. 3.43
Language GERM
  • The oxidizing agent is air with an oxygen content of 20.95 % by volume. In the data base it is usually not specified as mixture component. Exceptions are highlighted.
  • Pressure values are absolute, not gauge pressures.
  • Impurities can strongly influence characteristic safety data, particulary if the properties of the impurity considerably deviate from the respective properties of the pure substance.
  • Safety characteristics are only displayed if evaluated data are available.
  • Values can be cited by using the UTI number of the table (Uniform Table Identifier).
  • Color Codes:         recommended value             no recommendation               do not use value

Flash point
1 1963 Nabert, K.; Schön, G. 83 °C UTI: 1000-873-10957/0-39
UTI: 1000-873-10957/0-39;
Line no Flash point
  • recommended value
  • experimental
  • closed cup
  • property of pure substance
1 83 °C
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
2 1941 Berger, H. 83 °C UTI: 15-873-10941/0-39
UTI: 15-873-10941/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 83 °C
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
3 1941 Berger, H. 116 °C UTI: 15-873-10942/0-39
UTI: 15-873-10942/0-39;
Line no Flash point
  • open cup
  • property of pure substance
1 116 °C
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
4 1950 83 °C UTI: 1-873-10931/0-39
UTI: 1-873-10931/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 83 °C
Bibliographic data
Title Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year 1950
Journal Title The Factory Mutual Engineering Division;Boston, Ma
Publisher The Factory Mutual Engineering Division
Publisher City Boston
Language ENGL
5 1950 116 °C UTI: 1-873-10932/0-39
UTI: 1-873-10932/0-39;
Line no Flash point
  • open cup
  • property of pure substance
1 116 °C
Bibliographic data
Title Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year 1950
Journal Title The Factory Mutual Engineering Division;Boston, Ma
Publisher The Factory Mutual Engineering Division
Publisher City Boston
Language ENGL
6 1951 Oehley, E. 83 °C UTI: 13-873-10936/0-39
UTI: 13-873-10936/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 83 °C
Bibliographic data
Title Stoffdaten
Author Oehley, E.
Year 1951
Publisher Farbwerke Hoechst, Techn. Abt. Farben-Gruppe
Language GERM
Maximum experimental safe gap
1 2020 DIN EN ISO/IEC 1 mm UTI: 241-873-10956/0-39
UTI: 241-873-10956/0-39;
Line no Maximum experimental safe gap
  • recommended value
  • property of pure substance
1 1 mm
Bibliographic data
Author DIN EN ISO/IEC
Year 2020
Title DIN EN ISO/IEC 80079-20-1 :2020-09
Subtitle Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
Publisher Beuth
Publisher City Berlin

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