Assertion: potassium iodide's iodine | /r/HasProperty | main active staining agent
Facets:
value: in melzer
type: LOCATION
Source sentences:
text: Iodine is thought to be the main active staining agent in Melzer's; it is thought to react with starch-like polysaccharides in the cell walls of amyloid material, however, its mechanism of action is not entirely understood.