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Chemical substance record

Benznidazole

22994-85-0C12H12N4O3260.253 g/mol

A monocarboxylic acid amide obtained by formal condensation of the carboxy group of (2-nitroimidazol-1-yl)acetic acid with the aromatic amino group of benzylamine. Used for treatment of Chagas disease. — ChEBI

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Safety documents & references

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Identity & molecular properties

Source-linked values
CAS number22994-85-0ChEBI ↗
Molecular formulaC12H12N4O3ChEBI ↗
Molar mass260.253 g/molChEBI ↗
Monoisotopic mass260.09094 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:133833ChEBI ↗

Cross-source molecular data

PubChem
Molar mass260.25 g/molPubChem ↗
Exact mass260.09094026 DaPubChem ↗
Computed XLogP0.9PubChem ↗
Topological polar surface area (Ų)92.7PubChem ↗
H-bond donors1PubChem ↗
H-bond acceptors4PubChem ↗
Rotatable bonds4PubChem ↗

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

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benznidazole
N-benzyl-2-(2-nitro-1H-imidazol-1-yl)acetamide
CULUWZNBISUWAS-UHFFFAOYSA-N
O=C(Cn1ccnc1[N+](=O)[O-])NCc1ccccc1
InChI=1S/C12H12N4O3/c17-11(14-8-10-4-2-1-3-5-10)9-15-7-6-13-12(15)16(18)19/h1-7H,8-9H2,(H,14,17)

Names & synonyms

benznidazolbenznidazolumN-benzyl-2-(2-nitro-1H-imidazol-1-yl)acetamide

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

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

antiprotozoal drugtrypanocidal drugantileishmanial 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
0.00384241 mol

Uses 260.253 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
C
Carbon · 12 atoms
55.38%
N
Nitrogen · 4 atoms
21.53%
O
Oxygen · 3 atoms
18.44%
H
Hydrogen · 12 atoms
4.65%

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
Benznidazole for Chronic Chagas' Cardiomyopathy. ↗The New England journal of medicine · 2016 Jan 14 · PMID 26760092
Benznidazole for Chronic Chagas' Cardiomyopathy. ↗The New England journal of medicine · 2016 Jan 14 · PMID 26760093

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:133833

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

NCBI PubChem · CID 31593 · 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.