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线性分子式:
(CH3O)2SO2
化学文摘社编号:
分子量:
126.13
UNSPSC Code:
12352108
NACRES:
NA.22
PubChem Substance ID:
EC Number:
201-058-1
Beilstein/REAXYS Number:
635994
MDL number:
Assay:
≥99%
Bp:
188 °C (lit.)
Vapor pressure:
0.7 mmHg ( 25 °C)
产品名称
硫酸二甲酯, ≥99%
InChI key
VAYGXNSJCAHWJZ-UHFFFAOYSA-N
InChI
1S/C2H6O4S/c1-5-7(3,4)6-2/h1-2H3
SMILES string
COS(=O)(=O)OC
vapor density
4.3 (vs air)
vapor pressure
0.7 mmHg ( 25 °C)
assay
≥99%
form
liquid
autoignition temp.
923 °F
refractive index
n20/D 1.386 (lit.)
bp
188 °C (lit.)
mp
−32 °C (lit.)
density
1.333 g/mL at 25 °C (lit.)
Quality Level
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Application
硫酸二甲酯是强甲基化试剂,可用于羧酸、醇、酚、内酰胺、肟、羟胺和氢过氧化物的甲基化。可作为试剂,制备 N-甲基烷基胺、芳基取代胺、酰胺和季铵盐。硫酸二甲酯也用于含硫化合物的甲基化反应,合成硫化物和硫鎓离子。
还能作为试剂,用于:
还能作为试剂,用于:
- 由甲基丙烯酸-2-二甲氨基乙酯季铵化制备丙烯酸季铵盐单体,该单体可作为强效的抗菌剂
- 与二甲基亚砜一起,通过形成三甲基硫鎓阳离子,从醛和酮合成环氧化物。
- 通过甘油甲基化制备柴油的含氧添加剂
signalword
Danger
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
181.4 °F - closed cup
flash_point_c
83 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
新产品
此项目有
Methylation of glycerol with dimethyl sulfate to produce a new oxygenate additive for diesels
Chang J-S, et al.
Industrial & Engineering Chemistry Research, 51(2), 655-661 (2012)
Dimethyl Sulfate
Merriman G
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Generation of trimethylsulfonium cation from dimethyl sulfoxide and dimethyl sulfate: implications for the synthesis of epoxides from aldehydes and ketones
Forrester J, et al.
Journal of the Chemical Society. Perkin Transactions 1, (18), 2289-2291 (1995)
Fieser and Fieser: Reagents For Organic Synthesis
Fieser, Mary and March, Jerry
Fieser and Fieser's Reagents for Organic Synthesis, 16 (1993)
Dimethyl Sulfate.
Merriman G.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
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