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Negative ion mass spectrometry of the new riboflavin metabolite: 7,8‐dimethyl‐10‐formylmethyl‐isoalloxazine ethyl‐hemi‐alcoholate (flavin‐10‐acetaldehyde ethyl‐hemi‐alcoholate)
Author(s) -
Tümmler R.,
Steinfelder K.,
Owen E. C.,
West D. W.
Publication year - 1971
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210050106
Subject(s) - flavin group , chemistry , acetaldehyde , fragmentation (computing) , riboflavin , electron ionization , ion , metastability , mass spectrometry , metabolite , medicinal chemistry , photochemistry , analytical chemistry (journal) , chromatography , ethanol , enzyme , organic chemistry , biochemistry , ionization , ecology , biology
Flavin‐10‐acetaldehyde ethyl hemi‐alcoholate obtained at the Hannah Dairy Research Institute by bacterial degradation of riboflavin was examined in the Electron Attachment (EA) apparatus at the Forschungsinstitut Manfred von Ardenne. At low temperatures pyrolysis was negligible and the peak of greatest mass was only four units less than the molecular weight. The fragmentation patterns at greater field strengths indicated metastable peaks of masses in accord with the fragmentation pattern at lower fields. The patterns at the lower temperatures used resembled in important respects the EA pattern from riboflavin in an earlier study. In explanation of the fragmentation pattern obtained, structures have been assigned to the ions recorded.