2-Amino-2-thiazolin-4-one 2-Imino-4-thiazolidinone 2-Imino-4-thiazolidone 2-Thiazolin-4-one, 2-amino- 4(5H)-Thiazolone, 2-amino- 4,5-Imidazolidinedithione 4-Thiazolidinone, 2-imino- 556-90-1 NSC45956 Usaf be-4-5 Usaf dm-1 WLN: T5MYYM EHJ BUS CUS pseudo-Thiohydantoin