You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 2-[3-[6-amino-5-(1-propan-2-yltriazol-4-yl)pyridin-3-yl]-5-chlorophenyl]morpholine-4-carbaldehyde ?
user
C21H23ClN6O2
assistant