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Chemical substance record

Palladium

7440-05-3Pd106.42 g/mol
ElementChEBI source record

Chemical element (nickel group element atom) with atomic number 46. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values
CAS number7440-05-3ChEBI ↗
Molecular formulaPdChEBI ↗
Molar mass106.42 g/molChEBI ↗
Monoisotopic mass105.90349 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:33363ChEBI ↗

Cross-source molecular data

PubChem
Molar mass106.42 g/molPubChem ↗
Exact mass105.90348 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
palladium atom
palladium
KDLHZDBZIXYQEI-UHFFFAOYSA-N
[Pd]
InChI=1S/Pd

Names & synonyms

palladium

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

Classification & relationships

ChEBI ontology

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.00939673 mol

Uses 106.42 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
Pd
Palladium · 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
Contact urticaria syndrome caused by haptens. ↗Postepy dermatologii i alergologii · 2014 May · PMID 25097477

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:33363

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

NCBI PubChem · CID 23938 · 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.