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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:
7446-09-5
分子量:
64.06
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
329765683
EC Number:
231-195-2
Beilstein/REAXYS Number:
3535237
MDL number:
MFCD00011450
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

200

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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。（SO2）2] 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
STBJ2475
STBH2247
STBF8943V
STBF3102V
BCBL2391V

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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)
Philippe Bisseret et al.
Organic & biomolecular chemistry, 11(33), 5393-5398 (2013-07-16)
Although sulfur dioxide (SO2) has been used as a reagent for organic chemistry for more than one hundred years, being endowed with quite a distinct and varied reactivity profile, which allows the synthesis of a large range of compounds, its
Xin-Bao Wang et al.
Life sciences, 98(2), 63-67 (2014-01-15)
Sulfur dioxide (SO2) is a common air pollutant and is detrimental to many organs. Its toxic effects including oxidative damage, deoxyribonucleic acid (DNA) damage and inflammation have been extensively studied. However, recent studies showed that SO2 can be generated endogenously
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