Notes: 4-fluoro MDMB-BUTINACA 3-carboxyindazole metabolite (Item No. 27819) is an analytical reference standard that is structurally similar to known synthetic cannabinoids. 4-fluoro MDMB-BUTINACA 3-carboxyindazole metabolite is a precursor in the synthesis of 4-fluoro MDMB-BUTINACA (Item No. 26645).{51393} It is a potential metabolite of 4-fluoro MDMB-BUTINACA based on the published metabolism of 5-fluoro AMB (Item No. 15489) and MDMB-PINACA.{45804} At the time 4-fluoro MDMB-BUTINACA 3-carboxyindazole metabolite (Item No. 27819) was made available for purchase, specific metabolism data had not been published. Contact us if updated information on this molecule is now available. This product is intended for research and forensic applications.