Amsterdam 30ml Isobutyl Nitrite Solvent Cleaner from Poppers Miami. To many Westerners Amsterdam is the naughty sexy-time capitol of the world so it should come as little surprise that one of the most reliable and steadfast solvent cleaner brands not only shares the moniker but also its place of origin. There is little to be desired from a cleaner as efficient as this one. Amsterdam 30ml really seeps in and takes over and no stone is left unturned. Contained in a reusable, airtight container with a potent little freshness pellet Amsterdam 30ml is not easily ignored or forgotten. It is very easy to bite off more than you can chew with this solvent so please, always clean responsibly. Not for consumption. Use only as directed.