Allylurea557-11-932 % similar Propylurea627-06-532 % similar Thiosemicarbazide79-19-632 % similar Acetone semicarbazone110-20-331 % similar Hydantoic acid462-60-231 % similar Isobutylurea592-17-631 % similar Butylurea592-31-431 % similar Cyclohexylurea698-90-831 % similar Allantoic acid99-16-131 % similar Guanidinium chloride50-01-130 % similar Guanylurea phosphate17675-60-430 % similar (S)-Pyrrolidine-2-carboxamide monohydrochloride42429-27-630 % similar Allantoin97-59-630 % similar N-Octadecylurea2158-08-930 % similar L-Alaninamide hydrochloride33208-99-030 % similar Amidinomalonamide hydrochloride34570-17-730 % similar Phenylurea64-10-830 % similar