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Merck
CN

744255

二氧化硫

≥99.98%

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关于此项目

线性分子式:
SO2
化学文摘社编号:
分子量:
64.06
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
231-195-2
Beilstein/REAXYS Number:
3535237
MDL number:
Assay:
≥99.98%
Form:
gas
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InChI

1S/O2S/c1-3-2

InChI key

RAHZWNYVWXNFOC-UHFFFAOYSA-N

SMILES string

O=S=O

vapor density

2.26 (21 °C, vs air)

vapor pressure

1779 mmHg ( 21 °C)

assay

≥99.98%

form

gas

bp

−10 °C (lit.)

mp

−73 °C (lit.)

density

1.25 g/mL at 25 °C (lit.)

Quality Level

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Application

二氧化硫(SO2)可用于:
  • 钯催化的氨基磺酰化反应。
  • 制备1,4-二氮杂双环[2.2.2]辛烷[DABCO。(SO22] 或 DABSO,可用作试剂,在钯催化的情况下,通过氨基磺酰化过程,合成 N氨基磺酰胺。
  • 合成聚磺基甜菜碱(PSB / SO2)共聚物。

Packaging

500 ml高压铝制气瓶,配有符合DIN 477-1标准的不锈钢阀门。

Other Notes

744255-450G-EU包装:500 mL 配备黄铜阀的铝筒。
对于744255-450G-EU:出口接头:DIN 477-1 no.1、Z742162或Z742164是推荐的调节器。

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Press. Gas Liquefied gas - Skin Corr. 1B

存储类别

2A - Gases

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

监管及禁止进口产品
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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Palladium-catalysed aminosulfonylation of aryl-, alkenyl-and heteroaryl halides: scope of the three-component synthesis of N-aminosulfonamides
Emmett EJ, et al.
Organic & Biomolecular Chemistry, 10(20), 4007-4014 (2012)
Synthesis and cyclopolymerization of diallylammoniomethanesulfonate
Ali, Shaikh A and Al-Hamouz OCS
Polym. Eng. Sci., 53(11), 2378-2388 (2013)
DABCO-bis (sulfur dioxide), DABSO, as a convenient source of sulfur dioxide for organic synthesis: utility in sulfonamide and sulfamide preparation.
Woolven H, et al.
Organic Letters, 13(18), 4876-4878 (2011)
Xin-Bao Wang et al.
European journal of pharmacology, 670(1), 1-6 (2011-09-20)
Sulfur dioxide is considered a toxic gas in air pollution and detrimental to many organs, however, it can be generated endogenously in the cardiovascular system in vivo. Gaseous sulfur dioxide has an endothelium-dependent vasorelaxing effect at low concentrations, but is
Shan-Shan Chen et al.
Chinese medical journal, 124(12), 1901-1905 (2011-07-12)
Sulfur dioxide was considered to be toxic and detrimental to human health. However, this review highlights recent advances that suggest sulfur dioxide might be a novel endogenous gaseous signaling molecule involved in the regulation of cardiovascular functions. The data used

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