“…2-morpholino-5-phenyl-6H-1,3,4-thiadiazine hydrobromide (compound L-17) (Reaxys RN=14755889, CAS NUMBER 193208-23-0) from the group of substituted 1,3,4-thiadiazines studied in these experiments has proven a biological effect (Rantsev et al 2013;Sarapultsev et al 2014Sarapultsev et al , 2015Sarapultsev et al , 2016. The lethal dose of L-17 (LD50) is 434 mg/ kg (by weight), and the compound is a registered invention (United States Patent No 6313111 of 6 November 2001, PCT RF Patent No 2259371 of 27 August 2005.…”