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system
Provide the molecular formula for the IUPAC named substance methyl (5R,7E)-7-(1,3-benzodioxol-5-ylmethylidene)-4-(4-chlorophenyl)-8-oxo-9-phenyl-1,6-dithia-3,4,9-triazaspiro[4.4]non-2-ene-2-carboxylate .
user
C26H18ClN3O5S2
assistant