MDIP

Also known as N-ISOPROPYL-MDA, (3,4-METHYLENEDIOXY-N-ISOPROPYLAMPHETAMINE)

An isopropyl relative of MDA that proved essentially inactive even at doses over 100 milligrams. It was used in "primer" and "piggyback" experiments to probe whether an inactive drug could interact with an active one like MDMA or MDE; the two mostly ignored each other, though it could faintly rekindle a lingering MDE state with added physical discomfort such as tremor.