Phenylpropiolic aldehyde diethyl acetal; dehydrocinnamaldehyde-diethylacetal; Phenylpropiolaldehyde diethyl acetal; 1,1-Diethoxy-3-phenyl-2-propyne~Phenylpropargyl aldehyde diethyl acetal~3-Phenyl-2-propyn-1-al diethyl acetal
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