2-Methyltetrahydrofuran-3-One 

Furfuryl-Methyl-Sulfide 

Furfuryl-Mercaptan 

Difurfuryl-Sulfide 

Difurfuryl-Disulfide 

2-Methyl-3-Methylthio-Furan 

2-Ethyl-Furan 

2-Acetyl-Furan 

2-Amino-Pyrazine 

2,5-Diethyl-3,6-Dimethyl-Pyrazin... 

2-Ethyl-4-Methyl-Thiazole 

2-Mercapto-Methyl-Pyrazine 

5-Methyl-Quinoxaline 

5h-5-Methyl-6,7-Dihydrocylopenta... 

2-Ethoxy-3-Isopropyl-Pyrazine 

Pyrazine-Ethanethiol 

2-Ethoxy-3-Secbutyl-Pyrazine 

2-Ethoxy-3-Isobutyl-Pyrazine 

2-Acetyl-3,5(6)-Dimethyl-Pyrazin... 

2-Methoxy-3-Isopropyl-Pyrazine 

2-Isobutyl-3-Methyl-Pyrazine 

2-Ethyl-3,5(6)-Dimethyl-Pyrazine 

2,3-Diethyl-Pyrazine 

2-Mercapto-Pyrazine 

2-Methyl-5-Ethyl-Pyrazine 

2-Acetyl-3-Methyl-Pyrazine 

2-Methoxy-Pyrazine 

2-Ethyl-3-Methyl-Pyrazine 

2-Ethyl-Pyrazine 

2-Methylthio-Pyrazine 

2-Methoxy-3-Isobutyl-Pyrazine 

2-Methyl-3(5/6)-Furfurylthio-Pyr... 

2-Methoxy-3-Secbutyl-Pyrazine 

2-Methyl-3(5/6)-Ethoxy-Pyrazine 

2-Methyl-3(5/6)-Methylthio-Pyraz... 

2-Methyl-3(5/6)-Methoxy-Pyrazine 

2,3-Diethyl-5-Methyl-Pyrazine 

2,3,5,6-Tetramethyl-Pyrazine 

2,6-Dimethyl-Pyrazine 

2,5-Dimethyl-Pyrazine 

2-Methyltetrahydrothiophen-3-One 

2-Mercaptothiophene 

4-Methyltetrahydrothiophen-3-One 

Tetrahydrothiophen-3-One 

2-Acetyl-Thiophene