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system
Provide the molecular formula for the IUPAC named substance 3-ethyl-2-[(E)-2-(8-hydroxy-2,3,7,9,9-pentamethyl-1,4-dioxaspiro[4.5]dec-6-en-8-yl)ethenyl]cyclopentene-1-carboxylic acid .
user
C23H34O5
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