Formaldehyde-isobutyraldehyde-urea copolymer28931-47-7100 % similar Urea-formaldehyde resin9011-05-662 % similar Urea57-13-641 % similar Isobutyraldehyde78-84-241 % similar Hydrogen peroxide - urea124-43-639 % similar Urea hydrochloride506-89-838 % similar Urea dihydrogen phosphate4861-19-237 % similar Urea nitrate124-47-033 % similar