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Melatonin CAS No. 73-31-4 C13H16N2O2 M.W. 232.28 M-761
 | Melatonin-d4 CAS No. N/A C13H12N2O2D4 M.W. 236.31 M-762
 | 6-Sulfatoxy Melatonin Sodium Salt CAS No. 76290-78-3 C13H15N2O6S. Na M.W. 327.34 22.99 M-764
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6-Hydroxy Melatonin CAS No. 2208-41-5 C13H16N2O3 M.W. 248.28 M-765
 | 6-Hydroxy Melatonin-d4 CAS No. 69533-61-5 C13H12N2O3D4 M.W. 252.31 M-766
 | Melatonin Related Compound (Pyrrole-2,3,5-Tricarboxylic Acid) CAS No. 945-32-4 C7H5NO6 M.W. 199.12 M-767
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