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Accessed: 
Structural identifiersNames and synonyms
Cesium, isotope of mass 139
| Molecular formula: | 139Cs |
| Average mass: | 138.913 |
| Monoisotopic mass: | 138.913364 |
| ChemSpider ID: | 57524773 |
Non-standard isotope
Structural identifiers- Names
Names and synonymsUnverified
14808-14-1
[RN]Cesium, isotope of mass 139