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Chemical substance record

Calcium-43

14333-06-3[43Ca]42.959 g/mol
ElementChEBI source record

A minor stable isotope of calcium with relative atomic mass 42.95877 and 0.135 atom percent natural abundance. — ChEBI

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Identity & molecular properties

Source-linked values
CAS number14333-06-3ChEBI ↗
Molecular formula[43Ca]ChEBI ↗
Molar mass42.959 g/molChEBI ↗
Monoisotopic mass42.95877 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:176566ChEBI ↗

Names & structural identifiers

Copy any identifier
calcium-43 atom
((43)Ca)calcium
OYPRJOBELJOOCE-AKLPVKDBSA-N
[43Ca]
InChI=1S/Ca/i1+3

Names & synonyms

((43)Ca)calcium

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
0.023278 mol

Uses 42.959 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Research & patent references

Selected source associations
Calcium-43 NMR of calcium-binding proteins. ↗Methods in molecular biology (Clifton, N.J.) · 2002 · PMID 11859764
Two-dimensional (43)Ca-(1)H correlation solid-state NMR spectroscopy. ↗Solid state nuclear magnetic resonance · 2009 Feb · PMID 19117733

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:176566

Release 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.