4-amino-6-(cyclopropylamino)-5H-1,3,5-triazin-2-one 4-amino-6-(cyclopropylamino)-5H-s-triazin-2-one c0761 2-Hydroxy-4-amino-6-(cyclopropylamino)-1,3,5-triazine C14148 N-Cyclopropylammeline