Figure 1
From: Expanding the fragrance chemical space for virtual screening
Property histograms of various databases (A-D) and their fragrance-like subsets (E-H). The frequency peak in FragranceDB at 9-11 heavy atoms corresponds to a diverse constellation comprising aliphatic linear and branched alkenes, aldehydes, alcohols, ketones and esters, various simple benzene, phenol and benzaldehyde analogs, furanones, monoterpenes. The frequency peaks in TasteDB at 10-12 atoms corresponds to various hexoses and their reduced hexitols, monoterpenes, coumarins, anisols, and amino acids.