| 1 | | 2-KETOBUTYRIC-4-13C ACID SODIUM SALT MONOHYDRATE | 2-Oxobutanoic acid-4-13C sodium salt | C4H7NaO4
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| 2 | | 2-Oxobutanoic Acid-13C,d5 Sodium Salt | 2-Oxobutanoic Acid-13C,d5 Sodium Salt | C4H6O3
| Aliphatics;Isotope Labelled Compounds | |
| 3 | | Α-酮丁酸钠-4-13C,4-D1 | 2-Oxobutanoic acid-4-13C,4-d sodium salt | C4H6DNaO4
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| 4 | | 2-KETOBUTYRIC ACID-13C4,3,3-D2 SODIUM SALT HYDRATE | 2-Oxobutanoic acid-13C4,3,3-d2 sodium salt | C4H5D2NaO4
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| 5 | | 2-KETOBUTYRIC ACID-4-13C,3,3-D2 SODIUM SALT HYDRATE | 2-Oxobutanoic acid-4-13C,3,3-d2 sodium salt | C4H5D2NaO4
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| 6 | | Α-酮丁酸钠-4-13C,4,4-D2 | 2-Oxobutanoic acid-4-13C,4,4-d2 sodium salt | C4H5D2NaO4
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| 7 | | 2-KETOBUTYRIC ACID-4-13C,3,3,4,4,4-D5 SODIUM SALT HYDRATE | 2-Oxobutanoic acid-4-13C.3,3,4,4,5-d5 sodium salt | C4H2D5NaO4
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