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About This Item
Linear Formula:
SO2
CAS Number:
Molecular Weight:
64.06
Beilstein/REAXYS Number:
3535237
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22
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vapor density
2.26 (21 °C, vs air)
Quality Level
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.)
SMILES string
O=S=O
InChI
1S/O2S/c1-3-2
InChI key
RAHZWNYVWXNFOC-UHFFFAOYSA-N
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Application
Sulfur dioxide (SO2) can be used:
- In the palladium catalyzed aminosulfonylation reaction.[1]
- To prepare 1,4-diazabicyclo[2.2.2]octane [DABCO. (SO2)2] or DABSO, which is used as a reagent to synthesize N-aminosulfonamides via aminosulfonylation process using palladium catalyst.[1][2]
- To synthesize polysulfobetaine (PSB/SO2) copolymer.[3]
Packaging
500ml high pressure aluminum cylinder equipped with a stainless steel valve according to DIN 477-1.
Other Notes
For 744255-450G-EU packaging: 500 mL of aluminium cylinder equipped with brass valve.
Recommended products
For 744255-450G-EU: outlet fitting: DIN 477-1 no. 1, Z742160 or Z742161 are the recommended regulators.
related product
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Eye Dam. 1 - Press. Gas Liquefied gas - Skin Corr. 1B
Storage Class
2A - Gases
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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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
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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