245 



Table 5-2 Compounds present and compounds suspected of being present which 

 emanate from human skin. This Hst was derived from cryo-focused GC/MS analyses 

 of four human subjects. Listed with the compounds are the corresponding molecular 

 formula and relative molecular mass (r^). Explanation of remarks follows this table. 



Compound 



Foimula 



Remarks 



Tm 



Carboxylic acids 









2-propenoic acid 



CsH^O, 



G 



72 



Propanoic acid 



CbH^O, 



G 



74 



2-butenoic acid 



C4H,0, 





86 



2-methyl-2-butenoic acid 



QHsO, 



B,C 



98 



3-methyl-2-pentenoic acid 



QH10O2 



C 



114 



3-methyl-pentanoic acid 



QH,,o, 



C 



116 



Hexanoic acid 



C,Hi,0, 



A,G 



116 



Heptanoic acid 



C7H14O2 



G 



130 



Octanoic acid 



QHigOj 



A,G 



144 



Nonanoic acid 



CgHigOj 



G 



158 



Decanoic acid 



C10H20O2 



G 



172 



Undecanoic acid 



C11H22O2 



A,G 



186 



Dodecanoic acid 



C12H24O2 



G 



200 



Methyldodecanoic acid 



C13H26O2 



C 



214 



Tridecanoic acid 



C13H26O2 



G 



214 



Tetradecenoic acid 



C14H26O2 



C 



226 



Methyltridecanoic acid 



C14H2SO2 



C 



228 



Tetradecanoic acid 



C14H2SO2 



G 



228 



14-pentadecenoic acid 



Ci5H2g02 





240 



12-methyltetradecanoic acid 



C15H30O2 





242 



Methyltetradecanoic acid 



C15H30O2 



C 



242 



Methyltetradecanoic acid 



C15H30O2 



C 



242 



Pentadecanoic acid 



C15H30O2 



G 



242 



9-hexadecenoic acid 



C16H30O2 





254 



Methylpentadecanoic acid 



C16H3202 



C 



256 



Hexadecanoic acid 



C16H3202 



G 



256 



Heptadecenoic acid 



C17H3202 



C 



268 



Heptadecanoic acid 



C17H3402 



C,G 



270 



11-phenoxyundecanoic acid 



C17H2603 



A,E 



278 



9,12-octadienoic acid 



C18H3202 





280 



