pyrrolnitrin pyrrolnitrin pyrrolnitrin is an antifungal antibiotic. pseudomonas pyrrocinia and other pseudomonas species produce pyrrolnitrin from tryptophan as secondary metabolite. the fungicides fenpiclonil and fludioxonil are chemically related to pyrrolnitrin. pyrrolnitrin names preferred iupac name 3-chloro-4-(3-chloro-2-nitrophenyl)-1h-pyrrole identifiers cas number 1018-71-9 y 3d model (jsmol) interactive image chebi chebi:32079 n chemspider 13314 n echa infocard 100.012.557 ec number 213-812-7 kegg d01094 y mesh d011764 pubchem cid 13916 unii n0p24b6edq y comptox dashboard (epa) dtxsid9046867 inchi inchi=1s/c10h6cl2n2o2/c11-8-3-1-2-6(10(8)14(15)16)7-4-13-5-9(7)12/h1-5,13h nkey: qjbzdblbqwftpz-uhfffaoysa-n ninchi=1/c10h6cl2n2o2/c11-8-3-1-2-6(10(8)14(15)16)7-4-13-5-9(7)12/h1-5,13hkey: qjbzdblbqwftpz-uhfffaoyag smiles c1=cc(=c(c(=c1)cl)(=o))c2=cnc=c2cl properties chemical formula c10h6cl2n2o2 molar mass 257.07284 pharmacology atc code d01aa07 (who) except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references