'Star Rat Killer' is a poison, single dose. Its Federal EPA registration number is: 368-31. It was originally approved by EPA on 16 Sep 1955. Its registration got cancelled on 10 Oct 1989. It has a 'Caution' signal word. It has the following active ingredients: Red squill. It's approved for 5 sites including agricultural premises, com ind pub premises, domestic dwellings, food handling premises, and food processing areas. It is also approved for 2 pests and pest groups including but not limited to norway rat and roof rat.