2,4-Dimethyl-5-acetyl-thiazole 

2-Acetyl-thiazole 

2-Ethyl-4,5-dimethyl-tiazole 

2,4,5-Trimethyl-thiazole 

2,3-Dimethyl-pyrazine 

2,6-Dimethyl-pyridine 

2-Methylthio-pyrazine 

2-Methoxy-pyridine 

2,6-Dimethyl-pyrazine 

4,5-Dimethyl-thiazole 

4-Methyl-5-hydroxy-ethyl-thiazol... 

2-Furfurylthio-thiazole 

Ethyl-4-methyl-5--thiazoly-forma... 

5-vinyl-4-Methyl-thiazole 

4,5-Dimethyl-2--isobutyl-3-thiaz... 

2-Ethyl-4-methyl-thiazole 

4-Methyl-5-(2--acetoxyethyl)-thi... 

2-Isopropyl-4-methyl-thiazole 

2-Isopropyl-thiazole 

2-Methoxy-thiazole 

2-Ethoxy-thiazole 

2,4-Dimethyl-thiazole 

2-Acetyl-3(5/6)-dimethyl-pyrzine 

2-Methoxy-3-(5/6)-isopropyl-pyra... 

2-Furfurylthio-3(5/6)-methyl-pyr... 

2-Methylthio-3(5/6)-methyl-pyraz... 

2-Methylthio-3-methyl-pyrazine 

2-Ethoxy-3(5/6)-methyl-pyrazine 

2-Methoxy-3(5/6)---methyl-pyrazi... 

2-Methoxy-3-methyl-pyrazine 

2-Ethoxy-pyrazine 

2-Ethoxy-3-methyl-pyrazine 

2-Methoxy-3-secbutyl-pyrazine 

2-Methoxy-pyrazine 

2-Butyl-pyrazine 

2,3,5-Trimethyl-pyrazine 

2,3,5,6-Tetramethyl-pyrazine 

2-Acetyl-3-ethyl-pyrazine 

2-Ethyl-pyrazine 

2-Ethyl-3-methyl-pyrazine 

2-Acetyl-3-methyl-pyrazine 

2-Ethyl-3,(5/6)--dimethyl-pyrazi... 

2-Isobutyl-pyrazine 

2-Acetyl-pyrazine 

2-Ethoxy-pyridine