Robuta

https://webbook.nist.gov/cgi/cbook.cgi?ID=C886384&Mask=20 2-Cyclopropen-1-one, 2,3-diphenyl- one https://webbook.nist.gov/cgi/cbook.cgi?ID=C886384&Mask=1 2-Cyclopropen-1-one, 2,3-diphenyl- one