Figure 2. . Screenshots taken from COLMAR ¹³C-¹H HSQC web server. The HSQC peak list with 165 cross-peaks of Drosophila melanogaster metabolite extract (upper panel) is queried against the database.

List of matching compounds returned by the query (lower panel) containing the highest true positive and the lowest false-positive identification rate among ¹³C-¹H HSQC metabolomics web servers. COLMAR ¹³C-¹H HSQC is available for public use at [62].

Reproduced with permission from [33] © American Chemical Society (2015).