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        Pyrazine series
        Product name
        CAS Code
        2,5 or 6, 1-Dimethyl pyrazine 123-32-0 1003
        2-Methyl pyrazine 109-08-0 1001
        2,3-Dimethyl pyrazine 5910-89-4 1002
        2,6-Dimethyl pyrazine 108-50-9 1004
        2,3,5-Trimethyl pyrazine 14667-55-1 1005
        3-ElhyI-2-methyl pyrazine 15707-23-0 1006
        2-Methoxy-(3or5)-methyl pyrazine 68378-13-5 1007
        2-Methyllhio-(3or5)-methyl pyrazine 67952-65-2 1008
        2-Acetyl pyrazine 22047-25-2 1009
        2-Acetyl-3-methyl pyfazine 23787-80-6 1010
        2-Furfurylthio-(3 or 5)-methyl pyrazine 65530-534 1011
        5,6,7,8-Tetrahydro quinoxaline 34413-35-9 1012
        5-Methyl quinoxaline 2760-1996 1013
         
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