nitracaine nitracaine nitracaine is a stimulant with local anesthetic properties that has been sold online as a designer drug. nitracainelegal statuslegal status uk: under psychoactive substances act identifiers iupac name (3-diethylamino-2,2-dimethylpropyl)-4-nitrobenzoate cas number1648893-21-3pubchem cid91936940chemspider29341792uniib8zb08wi9ochemical and physical dataformulac16h24n2o4molar mass308.378 g·mol−13d model (jsmol)interactive image smiles ccn(cc)cc(c)(c)coc(=o)c1=cc=c(c=c1)(=o) inchi inchi=1s/c16h24n2o4/c1-5-17(6-2)11-16(3,4)12-22-15(19)13-7-9-14(10-8-13)18(20)21/h7-10h,5-6,11-12h2,1-4h3key:sptietjwcccjse-uhfffaoysa-n it is closely related to dimethocaine. legal status sweden's public health agency suggested classifying nitracaine as a hazardous substance, on september 25, 2019.