ly-2183240 ly-2183240 ly-2183240 is a drug which acts both as a potent inhibitor of the reuptake of the endocannabinoid anandamide and as an inhibitor of fatty acid amide hydrolase (faah), the primary enzyme responsible for degrading anandamide. this leads to markedly elevated anandamide levels in the brain, and ly-2183240 has been shown to produce both analgesic and anxiolytic effects in animal models. while ly-2183240 is a potent inhibitor of faah, it has relatively poor selectivity and also inhibits several other enzyme side targets. consequently, it was never developed for clinical use, though it remains widely used in research, and has also been sold as a designer drug. ly-2183240 names iupac name n,n-dimethyl-5-tetrazole-1-carboxamide identifiers cas number 874902-19-9 3d model (jsmol) interactive image chemspider 9682599 echa infocard 100.189.657 pubchem cid 11507802 unii 2wbu91okm7 y inchi inchi=1s/c17h17n5o/c1-21(2)17(23)22-16(18-19-20-22)12-13-8-10-15(11-9-13)14-6-4-3-5-7-14/h3-11h,12h2,1-2h3key: gzniyoxwfcdbbj-uhfffaoysa-ninchi=1/c17h17n5o/c1-21(2)17(23)22-16(18-19-20-22)12-13-8-10-15(11-9-13)14-6-4-3-5-7-14/h3-11h,12h2,1-2h3key: gzniyoxwfcdbbj-uhfffaoyaf smiles cn(c)c(=o)n1nnnc1cc2ccc(cc2)-c3ccccc3 properties chemical formula c17h17n5o molar mass 307.349 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references