I thought that was superheated Coleman's(Edit: according to the mighty Wikipedia you're looking more at sulphur dichloride being a major ingredient than sulphur dioxide -- apparently each molecule is made up of two blocks of chlorine bound to two carbon dihydrodide (whatever the fuck that's called, I last did chemistry in 1996 for fuck's sake - Wikipedia tells me methylene is a beautifully ambiguous name for it), each bound to a sulphur. Or something.)
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boris the spider,
Wed 28 Aug 2013, 19:36,
archived)
The sulphur atomactivates the ethylenes, which in turn rapidly shift off the chlorines, allowing it to crosslink your DNA. Incidentally, that's also the source of its anticancer ability.
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Colonel Boris "...a desperate Buzzfeed imitation...",
Wed 28 Aug 2013, 22:00,
archived)