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Summary of isotope labeling results for ACO
| Compound |
16O2-H218O system |
18O2-H216O system |
||
|---|---|---|---|---|
| 16O-Labeled | 18O-Labeled | 16O-Labeled | 18O-Labeled | |
| All-trans-retinal | 97.7% (71.8%)a | 2.2% (28.2%) | 7.8% | 92.2% |
| C10-apocarotenal | 97.9% (89.4%) | 2.1% (10.6%) | 6.8% | 93.2% |
a Numbers in parentheses are the results obtained in a reaction system containing 1 mg of ACO.
