Hydroxyurea127-07-136 % similar tert-Butylurea1118-12-336 % similar Homocitrulline1190-49-435 % similar Semicarbazide57-56-735 % similar Benzylurea538-32-934 % similar Acetone semicarbazone110-20-333 % similar Allantoic acid99-16-133 % similar Alpha-ketoisocaproic acid816-66-032 % similar Leucinamide hydrochloride10466-61-231 % similar N-Butylthiourea1516-32-131 % similar 3-Methylbutanoic acid503-74-231 % similar Aminourea hydrochloride563-41-731 % similar Diisoamylamine544-00-331 % similar Carbamoyl aspartic acid923-37-531 % similar 1-Phenylsemicarbazide103-03-730 % similar 3-Piperidinecarboxamide4138-26-530 % similar Nomega-Propyl-L-arginine137361-05-830 % similar