Propylcyclopentane2040-96-231 % similar 1-Pentyne627-19-031 % similar 5-Hydroxy-4-octanone496-77-530 % similar Etohexadiol94-96-230 % similar 2-Heptanol543-49-730 % similar 3-Heptanol589-82-230 % similar (+)-2-Heptanol6033-23-430 % similar (R)-(-)-2-Heptanol6033-24-530 % similar