You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[(E)-(8-chloro-2,3-dihydropyrano[3,2-b]pyridin-4-ylidene)amino]-4-(3-hydroxyphenyl)piperazine-1-carbothioamide .
user
C19H20ClN5O2S
assistant