Skip to content
[P]pubcas
Independent chemical reference Compare
Chemical substance record

Ammonium chloride

12125-02-9Cl.H4N53.492 g/mol
Salt and Compound WithChEBI source record

An inorganic chloride having ammonium as the counterion. — ChEBI

Safety references

Safety documents & references

2 indexed references
US · NIOSH

Occupational chemical safety guide

Ammonium chloride fume

Read official guide
JP · NITE

Government GHS classification

R03-C-033B-MOE · FY2021

View classification

Find a product-specific SDS

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 number12125-02-9ChEBI ↗
Molecular formulaCl.H4NChEBI ↗
Molar mass53.492 g/molChEBI ↗
Monoisotopic mass53.00323 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:31206ChEBI ↗

Cross-source molecular data

PubChem
Molar mass53.49 g/molPubChem ↗
Exact mass53.0032268 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
ammonium chloride
ammonium chloride
NLXLAEXVIDQMFP-UHFFFAOYSA-N
[Cl-].[H][N+]([H])([H])[H]
InChI=1S/ClH.H3N/h1H;1H3

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

ferroptosis inhibitor

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

Safety classification · Japan

NITE / Japanese government
Japan · FY2021 source classification
Ammonium chloride · R03-C-033B-MOE
EndpointReported classification
Hazardous to the aquatic environment (Acute)Category 3

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
0.0186944 mol

Uses 53.492 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
66.28%
N
Nitrogen · 1 atom
26.19%
H
Hydrogen · 4 atoms
7.54%

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

Explore literature using this exact identifier.

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:31206

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

NCBI PubChem · CID 25517 · 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.