Chemical substance record

Fenuron

101-42-8C₉H₁₂N₂O164.208 g/mol

Organic/Inorganic Small MoleculeChEBI source record

A member of the class of 3-(3,4-substituted-phenyl)-1,1-dimethylureas that is urea in which one of the nitrogens is substituted by a phenyl group while the other is substituted by two methyl groups. It is a herbicide used for the control of weeds in beetroot as well as various vegetable and ornamental crops. — ChEBI

Safety references

Safety documents & references

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Identity & molecular properties

Source-linked values

CAS number	101-42-8	ChEBI ↗
Molecular formula	C₉H₁₂N₂O	ChEBI ↗
Molar mass	164.208 g/mol	ChEBI ↗
Monoisotopic mass	164.09496 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:5013	ChEBI ↗

Cross-source molecular data

PubChem

Molar mass	164.20 g/mol	PubChem ↗
Exact mass	164.094963011 Da	PubChem ↗
Computed XLogP	1	PubChem ↗
Topological polar surface area (Å²)	32.3	PubChem ↗
H-bond donors	1	PubChem ↗
H-bond acceptors	1	PubChem ↗
Rotatable bonds	1	PubChem ↗

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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Source preferred name

fenuron

IUPAC name

1,1-dimethyl-3-phenylurea

InChIKey

XXOYNJXVWVNOOJ-UHFFFAOYSA-N

SMILES

CN(C)C(=O)Nc1ccccc1

InChI

InChI=1S/C9H12N2O/c1-11(2)9(12)10-8-6-4-3-5-7-8/h3-7H,1-2H3,(H,10,12)

Names & synonyms

1,1-dimethyl-3-phenylureaAmicure URCroptex ChromeCroptex RubyDibarDozerDybarElectrumFalisilvanFenidimFenidinHerbon Yellow

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

Classification & relationships

ChEBI ontology

3-(3,4-substituted-phenyl)-1,1-dimethylureaChEBI parent class · 157693 ↗

organic molecular entity

Roles recorded in ChEBI

herbicidephotosystem-II inhibitoragrochemicalxenobioticenvironmental contaminant

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

Amount

Input unit

Equivalent amount

0.00608984 mol

Uses 164.208 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 · 9 atoms

65.83%

N

Nitrogen · 2 atoms

17.06%

O

Oxygen · 1 atom

9.74%

H

Hydrogen · 12 atoms

7.37%

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

Fenuron sorption on homoionic natural and modified smectites. ↗Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes · 2000 May · PMID 10808993

Organoclays for controlled release of the herbicide fenuron. ↗Pest management science · 2001 Sep · PMID 11561405

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:5013

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

Additional molecular descriptorsNCBI PubChem · CID 7560 · 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.

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