You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(1,2,3,3a,4,6,7,7a-octahydropyrrolo[3,2-c]pyridin-5-ylmethyl)-6-methylimidazo[1,2-a]pyridine;dihydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H24Cl2N4
assistant