You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[5-[(1S)-1-amino-2-phenylethyl]-1,3,4-oxadiazol-2-yl]sulfanyl]acetamide;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C12H15ClN4O2S
assistant