Originally Posted by
cyccommute

I love these kinds of claims

They're as good as the "We sell only pure gasoline" signs you see all over.
Unless MSR is selling something that is all hexane (C6H6 hydrocarbon)
I certainly hope they're not selling C6H6 as stove fuel. That would be benzene - a lousy fuel and rather carcinogenic. But yes, their product is undoubtedly not 'pure' anything, but the poorly defined mix of hydrocarbons called naphtha.