| NO. | Name | CAS No. |
FEMA |
| 101 | 2-Acetyl thiazole | 24295-03-2 |
3328 |
| 102 | 2-Acetyl-1-methylpyrrole | 932-16-1 |
3184 |
| 103 | 2-Acetyl-2-thiazoline | 29926-41-8 |
3817 |
| 104 | 2-Acetyl-3-ethylpyrazine | 32974-92-8 |
3250 |
| 105 | 2-Acetyl-3-methylpyrazine | 23787-80-6 |
3964 |
| 106 | 2-Acetyl-5-methylfuran | 1193-79-9 |
3609 |
| 107 | 2-Acetylfuran | 1192-62-7 |
3163 |
| 108 | 2-Acetylthiophene | 88-15-3 |
|
| 109 | 2-Amylfuran | 3777-69-3 |
3317 |
| 110 | 2-Butyl furan | 4466-24-4 |
4081 |
| 111 | 2-Ethyl furan | 3208-16-0 |
3673 |
| 112 | 2-Ethyl-3(5or6)-dimethyl pyrazine | 13925-07-0 |
3149 |
| 113 | 2-Ethyl-3-methylpyrazine | 15707-23-0 |
3155 |
| 114 | 2-Ethyl-4-hydroxy-5-methyl-3(2h)-furanone | 27538-09-6 |
3623 |
| 115 | 2-Ethyl-4-methylthiazole | 15679-12-6 |
3680 |
| 116 | 2-Ethyl-5-methylpyrazine | 13360-64-0 |
3154 |
| 117 | 2-Ethylpyrazine | 13925-00-3 |
3281 |
| 118 | 2-Isobutyl-3-methyl pyrazine | 13925-06-9 |
3133 |
| 119 | 2-Isobutylthiazole | 18640-74-9 |
3134 |
| 120 | 2-Isopropyl-4-methylthiazole | 15679-13-7 |
3555 |