4-acetoxy-dipt 4-acetoxy-dipt 4-acetoxy-dipt (4-acetoxy-n,n-diisopropyltryptamine, ipracetin) is a synthetic psychedelic tryptamine. it is relatively uncommon and has only a short history of human use. 4-acetoxy-dipt names preferred iupac name 3--1h-indol-4-yl acetate identifiers cas number 936015-60-0 y 3d model (jsmol) interactive image chemspider 21106240 y pubchem cid 24801868 unii xv36ise3yq y comptox dashboard (epa) dtxsid30239482 inchi inchi=1s/c18h26n2o2/c1-12(2)20(13(3)4)10-9-15-11-19-16-7-6-8-17(18(15)16)22-14(5)21/h6-8,11-13,19h,9-10h2,1-5h3key: zpaovgzydsxcpk-uhfffaoysa-ninchi=1/c18h26n2o2/c1-12(2)20(13(3)4)10-9-15-11-19-16-7-6-8-17(18(15)16)22-14(5)21/h6-8,11-13,19h,9-10h2,1-5h3key: zpaovgzydsxcpk-uhfffaoyas smiles cc(c)n(ccc1cc2c1c(ccc2)oc(=o)c)c(c)c properties chemical formula c18h26n2o2 molar mass 302.418 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references chemistry 4-aco-dipt is a tryptamine structurally similar to 4-ho-dipt and psilocin. drug prohibition laws denmark 4-aco-dipt is added to the list of schedule b controlled substances. japan 4-acetoxy-dipt is a controlled substance in japan. sweden sveriges riksdags health ministry statens folkhälsoinstitut classified 4-aco-dipt as "health hazard" under the act lagen om förbud mot vissa hälsofarliga varor (translated act on the prohibition of certain goods dangerous to health) as of mar 1, 2005, in their regulation sfs 2005:26 listed as 4-acetoxi-n,n-diisopropyltryptamin (4-aco-dipt), making it illegal to sell or possess. united states 4-acetoxy-dipt is an unscheduled substance in the united states. due to similarities to other scheduled tryptamines such as psilocin and dipt, possession may be prosecuted under the federal analog act in the united states.