HMDB0060626 ps > 0 HMDB0060627 ps > 0 HMDB0060636 ps > 0 HMDB0060794 isotopes13c > 0 HMDB0014118 no_acceptable_nonsalt_component HMDB0012973 MW < 50.0 HMDB0001875 MW < 50.0 HMDB0001967 MW < 50.0 HMDB0002303 non-hydrogen_atoms < 4 HMDB0002329 no_acceptable_nonsalt_component HMDB0002500 no_acceptable_nonsalt_component HMDB0002714 MW < 50.0 HMDB0003338 MW < 50.0 HMDB0000042 no_acceptable_nonsalt_component HMDB0000142 MW < 50.0 HMDB0000662 MW < 50.0 HMDB0000990 MW < 50.0 HMDB0001426 MW < 50.0 HMDB0001429 no_acceptable_nonsalt_component