You can obtain it pretty much anywhere outside of the United States. But it's considered an important contaminant in the US.
You generally cannot buy it online legally, but it depends on the countries involved.
Dinitrophenol
http://en.wikipedia.org/wiki/Dinitrophenol
Yes, you can legally buy caffeine. Caffeine is not an illegal drug in the US.
Yes and no. Same-sex marriages legally performed in other countries are legally recognized in countries where same-sex marriage is legal. In countries where same-sex marriage is not legal, foreign same-sex marriages are not legally recognized.
Do you mean legally? if so Yes, but I think there's some types you can't buy in certain Countries because of spreading disease or something of that sort
There is no country where MDMA is legal to buy or sell. It is a controlled substance in most countries around the world, meaning that its production, distribution, and possession are illegal without proper authorization.
No.
Yes
not for humans legally in the usa
18
Please buy it legally