arsenamide arsenamide arsenamide or thiacetarsamide (trade name caparsolate) is an arsenical. it is a proposed chemotherapeutic agent against canine filaria and trichomonas. arsenamide names preferred iupac name 2,2′-diacetic acid other names thiacetarsamide identifiers cas number 531-72-6 y 3d model (jsmol) interactive image chemspider 10296 n pubchem cid 10749 unii vmf4ely9tz y comptox dashboard (epa) dtxsid10201182 inchi inchi=1s/c11h12asno5s2/c13-11(18)7-1-3-8(4-2-7)12(19-5-9(14)15)20-6-10(16)17/h1-4h,5-6h2,(h2,13,18)(h,14,15)(h,16,17) nkey: ybqweuneyyxyoi-uhfffaoysa-n ninchi=1/c11h12asno5s2/c13-11(18)7-1-3-8(4-2-7)12(19-5-9(14)15)20-6-10(16)17/h1-4h,5-6h2,(h2,13,18)(h,14,15)(h,16,17)key: ybqweuneyyxyoi-uhfffaoyak smiles o=c(n)c1ccc(cc1)(scc(=o)o)scc(=o)o properties chemical formula c11h12asno5s2 molar mass 377.27 g/mol 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