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Chemical substance record

Glycine

56-40-6C2H5NO275.067 g/mol

The simplest (and the only achiral) proteinogenic amino acid, with a hydrogen atom as its side chain. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values
CAS number56-40-6ChEBI ↗
Molecular formulaC2H5NO2ChEBI ↗
Molar mass75.067 g/molChEBI ↗
Monoisotopic mass75.03203 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:15428ChEBI ↗

Cross-source molecular data

PubChem
Molar mass75.07 g/molPubChem ↗
Exact mass75.032028402 DaPubChem ↗
Computed XLogP-3.2PubChem ↗
Topological polar surface area (Ų)63.3PubChem ↗
H-bond donors2PubChem ↗
H-bond acceptors3PubChem ↗
Rotatable bonds1PubChem ↗

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
glycine
aminoacetic acid
DHMQDGOQFOQNFH-UHFFFAOYSA-N
NCC(=O)O
InChI=1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5)

Names & synonyms

aminoacetic acid

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

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

antiviral agentneurotransmittermicronutrientantipsychotic agentantihypertensive agentnutraceuticalhepatoprotective agentEC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitorNMDA receptor agonistanti-HIV agent

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
0.0133214 mol

Uses 75.067 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
O
Oxygen · 2 atoms
42.63%
C
Carbon · 2 atoms
32.00%
N
Nitrogen · 1 atom
18.66%
H
Hydrogen · 5 atoms
6.71%

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

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:15428

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

NCBI PubChem · CID 750 · 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.