A chemical species with two negative charges.
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{2-[3-(4-chloro-phenyl)-3-oxo-2-(toluene-4-sulfonyl)-1-p-tolyl-propyl]-4-methyl-phenyl}-carbamic acid tert-butyl ester
1-{2-[2-(1-hydroxycyclohexyl)phenyl]ethyl}-1-cyclohexanol
