C9H21N3
{{DISPLAYTITLE:C9H21N3}} The molecular formula C9H21N3 (molar mass: 171.28 g/mol, exact mass: 171.1735 u) may refer to: 2-tert-Butyl-1,1,3,3-tetramethylguanidine 1,4,7-Trimethyl-1,4,7-triazacyclononane