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Retention indices of all isomers of trimethoxybenzene.
| structure | compound namea | Ib |
 |
1,2,3-trimethoxybenzene (21) | 1308 |
 |
1,2,4-trimethoxybenzene (21a) | 1368 |
 |
1,3,5-trimethoxybenzene (21b) | 1409 |
aThe natural product from H. griseobrunneum is 21, its isomers are designated 21a and 21b. bRetention index I on a HP5-MS column.
