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LC2267 Dimethyl sulfite
for synthesis


Order number Packaging Quantity Price €
AC29267 Glass bottle 25 ml 14.31
AC29267 Glass bottle 100 ml 33.975


Product information
Synonyms Sulfurous acid dimethyl ester, Methyl sulfite
Hill Formula C2H6O3S
Chemical formula (CH3O)2SO
HS Code 2920 90 85
EC number 210-481-0
Molar mass 110.13 g/mol
Storage Store below +15°C.
CAS number 616-42-2


Chemical and physical data
Solubility (20 °C) (decomposition)
Molar mass 110.13 g/mol
Density 1.21 g/cm3 (20 °C)
Boiling point 126 – 127 °C
Flash point 31 °C
Refractive index 1.4083 (20 °C, 589 nm)


Safety information
R Phrase R 10-36/37/38
Flammable.Irritating to eyes, respiratory system and skin.
S Phrase S 26
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Categories of danger flammable, irritant
Hazard Symbo


Storage class 3 Flammable Liquids
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.



Transport information
Declaration (transport by sea) IMDG-Code UN 1993 FLAMMABLE LIQUID, N.O.S.(DIMETHYL SULFITE), 3, III
Declaration (transport by air) IATA-DGR UN 1993 FLAMMABLE LIQUID, N.O.S.(DIMETHYL SULFITE), 3, III


Toxicological data
LD 50 oral
LD 50 dermal


Assay (GC, area%) ≥ 98 %
Density (d 20 °C/ 4 °C) 1.209 – 1.212
Identity (IR) passes test