compound geosmin InChI=1S/C12H22O/c1-10-6-5-8-11(2)7-3-4-9-12(10,11)13/h10,13H,3-9H2,1-2H3/t10-,11+,12-/m0/s1 C12H22O KEGG:C16286 compound CHEBI:46702 UPa:UPC16286