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Chemical substance record

Rhodium

7440-16-6Rh102.906 g/mol
ElementChEBI source record

A cobalt group element atom of atomic number 45. — ChEBI

Safety references

Safety documents & references

1 indexed references
JP · NITE

Government GHS classification

1013 · FY2006

View classification

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Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.

Identity & molecular properties

Source-linked values
CAS number7440-16-6ChEBI ↗
Molecular formulaRhChEBI ↗
Molar mass102.906 g/molChEBI ↗
Monoisotopic mass102.9055 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:33359ChEBI ↗

Cross-source molecular data

PubChem
Molar mass102.9055 g/molPubChem ↗
Exact mass102.90549 DaPubChem ↗

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 identifier
rhodium atom
rhodium
MHOVAHRLVXNVSD-UHFFFAOYSA-N
[Rh]
InChI=1S/Rh

Names & synonyms

rhodium

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

Safety classification · Japan

NITE / Japanese government
Japan · FY2006 source classification
rhodium · 1013
EndpointReported classification
Respiratory sensitizationCategory 1

Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.

Read the original NITE classification

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.00971761 mol

Uses 102.906 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
Rh
Rhodium · 1 atom
100.00%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

Research & patent references

Selected source associations

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:33359

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

NCBI PubChem · CID 23948 · retrieved 2026-09-27

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.