You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[2-(6-chloro-8-methylimidazo[1,2-a]pyrazin-2-yl)but-1-enyl]-5-(4-propan-2-ylpiperazin-1-yl)benzenecarbothioic S-acid ?
user
C25H30ClN5OS
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