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Formulas which begin with C₉H₂₁O₂PS

All formulas are in Hill order.

• C₉H₂₁O₂PS (Methylthiophosphonic acid, O,O-diisobutyl ester)
• C₉H₂₁O₂PS₃ (Phosphorodithioic acid, S-[(tert-butylthio)methyl] O,O-diethyl ester)

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