dibrospidium chloride dibrospidium chloride dibrospidium chloride, also known as spirobromin, is a drug being investigated to treat bone cancer. it has potential anti-inflammatory and anti-neoplastic properties. it is an alkylating antineoplastic agent. dibrospidium chlorideinn: dibrospidium chlorideclinical dataother namesspirobromin, spirobromineatc codel01 identifiers iupac name 3,12-bis(3-bromopropanoyl)-3,6,9,12-tetraazadispirohexadecane-6,9-diium dichloride cas number86641-76-1pubchem cid72114chemspider65092uniigrx5l9y3z3chemblchembl2106677comptox dashboard (epa)dtxsid101006989 chemical and physical dataformulac18-h32-br2-n4-o2.2clmolar mass567.1913d model (jsmol)interactive image smiles ..brccc(=o)n1cc2(cc1)cc3(ccn(cc3)c(=o)ccbr)cc2 inchi inchi=inchi=1s/c18h32br2n4o2.2clh/c19-3-1-17(25)21-5-9-23(10-6-21)13-15-24(16-14-23)11-7-22(8-12-24)18(26)2-4-20;;/h1-16h2;2*1h/q+2;;/p-2key:curyrivjtbnegu-uhfffaoysa-l dibrospidium chloride and related compounds were developed in russia in the 1980s. it is currently used in russia as a cytostatic antitumor chemotherapeutic drug.