Molecular Structure Of Molecules In A Dark Background, 3d Render Chemistry Mysteries: November 2011 Molecule Molecules hi res stock photography and images Alamy molecules Molecules m+ guaiac. The perfume Molecules M+ Guaiac by Escentric Molecules contains the molecular ingredient Iso E Super, a synthetic molecule with cedarwood notes and guaiac wood. The guaiac wood is an extract from the Palo Santo tree and provides a warm, smoky and woody fragrance experience.