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Chemical substance record

Sodium iodide

7681-82-5I.Na149.894 g/mol
Salt and Compound WithChEBI source record

A metal iodide salt with a Na(+) counterion. — ChEBI

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Identity & molecular properties

Source-linked values
CAS number7681-82-5ChEBI ↗
Molecular formulaI.NaChEBI ↗
Molar mass149.894 g/molChEBI ↗
Monoisotopic mass149.89424 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:33167ChEBI ↗

Cross-source molecular data

PubChem
Molar mass149.8942 g/molPubChem ↗
Exact mass149.89424 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
sodium iodide
sodium iodide
FVAUCKIRQBBSSJ-UHFFFAOYSA-M
[I-].[Na+]
InChI=1S/HI.Na/h1H;/q;+1/p-1

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

cardiovascular drug

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.00667138 mol

Uses 149.894 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
I
Iodine · 1 atom
84.66%
Na
Sodium · 1 atom
15.34%

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

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Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:33167

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

NCBI PubChem · CID 5238 · 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.