You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,5-dimethyl-1,3,4-oxadiazole;3,4-dimethyl-1,2,5-oxadiazole;2,5-dimethyl-1,3,4-thiadiazole;3,4-dimethyl-1,2,5-thiadiazole;ethane;1-methyltriazole;1-methyl-1,2,4-triazole;1,2,4-oxadiazole;thiadiazole;1,2,4-thiadiazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C51H105N23O3S4
assistant