Indene derivatives 1,1,3-trimethyl-3-phenyl-2,3-dihydro-1H-indene and 2-methyl-1-phenyl-1,3dicarbonitrile-1H-indene are compounds that were only discovered in 2015 and for which little information is available. The basic substance indene is used as a solvent.
Nothing is known about the effect of these substances.
Indene derivatives may have potential acute or long-term toxic effects.
Each synthesis impurity represents an unknown health risk: the properties hazardous to health have never been scientifically studied and are therefore difficult to estimate. The more different synthesis impurities are contained in a sample, the greater the probability that an impurity with a high adverse health effect is among them. Even a small amount of such an impurity can be harmful. In addition, synthetic impurities are an indication of improper manufacturing/purification. It is also important to add that regular use of amphetamine with synthetic impurities poses a higher health risk than one-time use.