Synonyms: 1-(4-Oxo-4,5-dihydro-1,3-thiazol-2-yl)guanidine;1-[(2E)-4-Oxo-1,3-thiazolidin-2-ylidene]guanidine;guanidine, N-(4,5-dihydro-4-oxo-2-thiazolyl)-;guanidine, N-[(2E)-4-oxo-2-thiazolidinylidene]-;guanidine, N-[(2Z)-4-oxo-2-thiazolidinylidene]-;N-(4-oxo-1,3-thiazolan-2-yliden)guanidine