You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (2S)-4-amino-2-[3-(5-chloro-1,3-dimethylpyrazol-4-yl)prop-2-enoylamino]-4-oxobutanoic acid ?
user
C12H15ClN4O4
assistant