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Chemical substance record

Chloride

16887-00-6Cl35.453 g/mol

A halide anion formed when chlorine picks up an electron to form an an anion. — ChEBI

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Identity & molecular properties

Source-linked values
CAS number16887-00-6ChEBI ↗
Molecular formulaClChEBI ↗
Molar mass35.453 g/molChEBI ↗
Monoisotopic mass34.9694 DaChEBI ↗
Formal charge-1ChEBI ↗
ChEBI identifierCHEBI:17996ChEBI ↗

Cross-source molecular data

PubChem
Molar mass35.45 g/molPubChem ↗
Exact mass34.9688527 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
chloride
chloride
VEXZGXHMUGYJMC-UHFFFAOYSA-M
[Cl-]
InChI=1S/ClH/h1H/p-1

Names & synonyms

chloride(1-)

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

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

cofactorEscherichia coli metabolitehuman metabolite

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
0.0282064 mol

Uses 35.453 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
Cl
Chlorine · 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
Bioinspired light-driven chloride pump with helical porphyrin channels. ↗Nature communications · 2024 Jan 27 · PMID 38280867
Chloride ions in health and disease. ↗Bioscience reports · 2024 May 29 · PMID 38573803

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:17996

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

NCBI PubChem · CID 312 · 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.