Products on this website contain isobutyl nitrite, CAS 542-56-3 / UN2351, and are lawfully manufactured, labeled, marketed, and sold for use as specialty commercial solvent cleaner in compliance with 15 U.S. Code § 2057a. Amsterdam 30+10+10 Combo Contains no amyl nitrate nor is offered for sale as 'poppers', 'sex inhalants', 'liquid incense, 'liquid aroma' or any other purpose that may be used for inhaling or otherwise introducing butyl nitrite into the human body for euphoric or physical effects. When you make a purchase from this store you acknowledge your agreement to not use these products in a manner that is inconsistent with their labeling.