description cationic assay ≥99.0% (AT) form solid mol wt 339.99 g/mol SMILES string [Cl-].CCCCCCCCCCCC[N+](C)(C)Cc1ccccc1 InChI 1S/C21H38N.ClH/c1-4-5-6-7-8-9-10-11-12-16-19-22(2,3)20-21-17-14-13-15-18-21;/h13-15,17-18H,4-12,16,19-20H2,1-3H3;1H/q+1;/p