MELANINCyanurotriamide2,4,6-Triamino-s-triazineCyanurotriamineCyanuramideMelamine对称三氨基三嗪sym-Triaminotriazine1,3,5-三嗪-2,4,6-三胺三聚氰胺Melamine2,4,6-Triamino-1,3,5-triazineMetformin impurity D (Ph Eur)NSC 21301,3,5-Triazine-2,4,6-triamineCyanuramideMelamineCyanuric triamideTriaminotriazinemelamines-TriazinetriamineCyanurotriamide2,4,6-Triamino-1,3,5-triazinesym-triaminotriazine1,3,5-triazine-2,4,6-triamine2,4,6-Triamino-s-triazineCyanurotriamine