2-Amino-5-chlorothiazole with cas registry number of 41663-73-4 is also known as 2-Thiazolamine, 5-chloro- ; 2-Thiazolamine, 5-chloro- (9CI) ; Thiazole, 2-amino-5-chloro- ; 4-27-00-04673 (Beilstein Handbook Reference) ; NSC 86106 .