Rubidium-85
A stable isotope of rubidium with relative atomic mass 84.91179, 72.17 atom percent natural abundance and nuclear spin 5/2. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 13982-12-2 | ChEBI ↗ |
| Molecular formula | [85Rb] | ChEBI ↗ |
| Molar mass | 84.912 g/mol | ChEBI ↗ |
| Monoisotopic mass | 84.91179 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:176572 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 84.91178974 g/mol | PubChem ↗ |
| Exact mass | 84.91178974 Da | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifierrubidium-85 atom((85)Rb)rubidiumIGLNJRXAVVLDKE-IGMARMGPSA-N[85Rb]InChI=1S/Rb/i1+0Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyMass ↔ amount of substance
Calculated from sourced massUses 84.912 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.