Hexamethylenetetramine100-97-0100 % similar Dinitrosopentamethylenetetramine101-25-740 % similar Hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine4719-04-436 % similar Dimorpholinomethane5625-90-136 % similar Dabco280-57-933 % similar