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  • 4-hydroxy-3,3,4-trimethyl-1-(1-pentyl-1H-indol-3-yl)-1-pentanone
CAS Number
Chemical and physical data
Molar mass329.484 g·mol−1
3D model (JSmol)
  • CCCCCN1C=C(C2=CC=CC=C21)C(=O)CC(C)(C)C(C)(C)O
  • InChI=1S/C21H31NO2/c1-6-7-10-13-22-15-17(16-11-8-9-12-18(16)22)19(23)14-20(2,3)21(4,5)24/h8-9,11-12,15,24H,6-7,10,13-14H2,1-5H3
 ☒NcheckY (what is this?)

4-HTMPIPO is a synthetic cannabinoid drug first identified in smoking products purchased from online vendors in 2012.[1] 4-HTMPIPO is the product resulting from the electrophilic addition of water to the cyclopropane moiety of synthetic cannabinoid UR-144.[1] Nothing is known about the in vitro or in vivo pharmacology of 4-HTMPIPO.

See also


  1. ^ a b Kavanagh P, Grigoryev A, Savchuk S, Mikhura I, Formanovsky A (August 2013). "UR-144 in products sold via the Internet: identification of related compounds and characterization of pyrolysis products". Drug Testing and Analysis. 5 (8): 683–92. doi:10.1002/dta.1456. PMID 23315949.