313c indicates that Even though not detailed by name and CAS number, this chemical is reportable under one or more from the EPCRA segment 313 chemical categories. There aren't any reports that cyanide can result in cancer in persons or animals. EPA has decided that cyanide is just not classifiable https://potassiumcyanidechemicalf05936.blogunteer.com/29361994/the-2-minute-rule-for-potassium-cyanide-price-in-bangalore