Okay, I did some more searching and I am convinced these ARE recreational poppers, even though they do not have a nitrite. I found the following website:
http://www.omniadult.com/store/special/misc_1.html
They sell both poppers and whippits. Their list of poppers is very extensive and includes poppers with FOUR different main ingredients, as follows:
{1} Cyclohexyl Nitrite or {2} Isobutyl Alcohol or {3} Ethyl Chloride or {4} Isopentyl Nitrite.
Most of the poppers are the first kind. However, five are isobutyl alcohol. Their names are suggestive that they give a rush and are associated with gay sex (commonly linked to poppers). See for yourself:
Rush w/ Power Pellet
Nitro Supra Liquid Aroma
Mr. Chaps Leather Cleaner
Mr. Wonderful
Rochefort
So, while I now think that isobutyl alcohol is a recreational popper ingredient, that still does not tell me how similar/different it is from the nitrites in effects, hangover (headache), dangers, contraindications, etc. Again, if anyone has tried any of these non-nitrite poppers, let me know what they are like.
In fact, if we have any really experience poppers who have compared these, a compare/contrast of them all (or list of them from best to worst) would be great.
Thanks,
~psychoblast~