brodimoprim brodimoprim brodimoprim is a structural derivative of trimethoprim. in brodimoprim, the 4-methoxy group of trimethoprim is replaced with a bromine atom. brodimoprimclinical dataatc codej01ea02 (who) identifiers iupac name 5-pyrimidine-2,4-diamine cas number56518-41-3 ypubchem cid68760chemspider62004 yuniiv1yc7t6llikeggd07238 ychebichebi:131726chemblchembl31891 ycomptox dashboard (epa)dtxsid20205070 echa infocard100.054.745 chemical and physical dataformulac13h15brn4o2molar mass339.193 g·mol−13d model (jsmol)interactive imagemelting point225 to 228 °c (437 to 442 °f) smiles brc1c(oc)cc(cc1oc)cc2cnc(nc2n)n inchi inchi=1s/c13h15brn4o2/c1-19-9-4-7(5-10(20-2)11(9)14)3-8-6-17-13(16)18-12(8)15/h4-6h,3h2,1-2h3,(h4,15,16,17,18) ykey:bfcrrlmmhnlscp-uhfffaoysa-n y (verify) as trimethoprim, brodimoprim is a selective inhibitor of bacterial dihydrofolate reductase.