Dimethylsulfit

Dimethyl sulfite

HCID 69223CAS 616-42-2

Grundinformationen

Standard-SMILES
COS(=O)OC
InChIKey
BDUPRNVPXOHWIL-UHFFFAOYSA-N
Summenformel
C2H6O3S
Durchschnittliche Molmasse
110,13 g/mol
Monoisotopische Masse
110,00376505

Überblick

Dimethyl sulfite is a sulfite ester.

Namen und Bezeichner

Bevorzugter Name
Dimethyl sulfite
IUPAC
dimethyl sulfite
Lokaler Name
Dimethylsulfit
Englischer Name
Dimethyl sulfite
Summenformel
C2H6O3S
Molmasse
110.13

Namen und Synonyme

Dimethyl sulfite616-42-2Methyl sulfiteSulfurous acid, dimethyl esterDimethyl sulphiteDimethylsulfiteDimethoxy sulfoxideTL 1599JFA40S66PNSC-41902DTXSID3060665CHEBI:48858
Weitere Namen anzeigen
tl159imethylsulfiteDiMethyl sulfitdimethoxysulfoxideDimethyl sulfite,99%
RefChem:134277DTXCID2043082210-481-0Dimethylsulfit(CH3O)2SOSulphurous acid dimethyl esterDimethyl ester of sulfurous acidDimethyl sulfite, 99%

Datenbank-Bezeichner

CAS
616-42-2
PubChem CID
69223
DTXSID
DTXSID3060665
ChEBI
CHEBI:48858
UNII
9JFA40S66P
EC Number
210-481-0
Nikkaji
J1.662D

Eigenschaften

Berechnete Struktureigenschaften

XLogP
0,2
Polarare Oberfläche (TPSA)
54,7 Ų
H-Brücken-Donoren
0
H-Brücken-Akzeptoren
4
Frei drehbare Bindungen
2
Schwere Atome
6

Experimentelle und physikochemische Eigenschaften

Chemical ClassesOther Classes -> Sulfur Compounds
SpringerMaterials PropertiesChemical shift
Physical DescriptionClear colorless liquid; [MSDSonline]

Physikochemische Eigenschaften

Schmelzpunkt
0 °C · 0°C
Siedepunkt
126 · 126-127 °C (lit.)
Dichte
1.294 g/mL · 1.294 g/mL at 25 °C (lit.)
Brechungsindex
20 · n20/D 1.410(lit.)
Flammpunkt
106 °F · 106 °F
storage temp.
Flammables area

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 4 Einträge

Warning

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 40 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Gefahrenhinweise

Regulatory Information · 2 Einträge

Chemical: Sulfurous acid, dimethyl ester

Dimethyl sulphite: Does not have an individual approval but may be used under an appropriate group standard

Hazards SummaryA skin and eye irritant; [eChemPortal: ERMA] An irritant; [MSDSonline]
Hazard Classes and CategoriesFlam. Liq. 3 (100%)

Toxikologische Informationen

Toxicity DataLC (mice) > 2,600 mg/m3

Sicherheitsdaten

wgk
3
tsca
TSCA listed
ridadr
UN 1993 3/PG 3
hs_code
29209085
RTECS-Nr.
WT3512000
risk_code
10-36/37/38

Chemie und Industrie

Verwendung und Herstellung

General Manufacturing InformationSulfurous acid, dimethyl ester: ACTIVE

Anwendungen

BeschreibungDer Schwefligsäuredimethylester bildet eine farblose Flüssigkeit, die mit Wasser hydrolysiert. Die Substanz wird in der organisch-technischen Synthesechemie verwendet.

VerwendenThe conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. It may be used in organic synthesis.

Darstellung · 1 Eintrag

synthetischeDimethyl sulfite is prepared from a 1:2 ratio of thionyl chloride and methanol. The reaction can be catalyzed by tertiary amine bases and likely proceeds via the chlorosulfinate (MeOS(O)Cl), this intermediate will exist only fleetingly in the presence of methanol and as such its decomposition to methyl chloride and sulfur dioxide (via the slower SNi mechanism) is not observed to any great extent. SOCl2 + 2 CH3OH → (CH3O)2SO + 2 HCl

Anbieter50 Anbieter

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