Semicarbazide57-56-7100 % similar Aminourea hydrochloride563-41-783 % similar Biuret108-19-050 % similar Biurea110-21-450 % similar Hydroxyurea127-07-145 % similar Methylurea598-50-543 % similar Aminoguanidine bicarbonate2582-30-142 % similar Methylol urea1000-82-441 % similar Ethylurea625-52-539 % similar tert-Butylurea1118-12-338 % similar Hydroxyethyl urea2078-71-938 % similar 1,3-Diaminoguanidine monohydrochloride36062-19-836 % similar Diaminoguanidine hydrochloride38360-74-636 % similar Thiosemicarbazide79-19-636 % similar Allylurea557-11-936 % similar Propylurea627-06-536 % similar Acetone semicarbazone110-20-335 % similar Hydantoic acid462-60-235 % similar Isobutylurea592-17-635 % similar Butylurea592-31-435 % similar