ioxynil

Chemical compound

Chemical compoundtype of chemical entityQ186546

Also known as Actril · Loxynil · Bentrol · Ioxynil

Formula: C₇H₃I₂NO
1
Sources
1.Stated in PubChem“Ioxynil”Retrieved 2016-10-09
View statement on Wikidata ↗
Mass: 370.83 Da
1
Sources
1.Stated in PubChem“Ioxynil”Retrieved 2016-10-09
View statement on Wikidata ↗
Melting point: 204°C
1
Sources
1.Stated in Jean-Claude Bradley Open Melting Point Dataset
View statement on Wikidata ↗

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Ioxynil is a post-emergent selective nitrile herbicide. It is used in Australia, New Zealand, South Africa, Iran and Japan to control broadleaf weeds via the inhibition of photosynthesis. It is used notably on onion crops, among others, normally at 300–900 g/Ha. It was introduced in 1966. The supply of ioxynil is decreasing, as of 2019 but the herbicide remains effective.

Overview

Chemistry

Computed by PubChem CID 15530 (NIH) · Public domain

Molecular formula: C7H3I2NO
Molecular weight: 370.91 g/mol
IUPAC name: 4-hydroxy-3,5-diiodobenzonitrile
SMILES: C1=C(C=C(C(=C1I)O)I)C#N
InChIKey: NRXQIUSYPAHGNM-UHFFFAOYSA-N
XLogP: 2
Topological polar surface area: 44 Å²
H-bond donors / acceptors: 1 / 2
Complexity: 176

Chemistry

All data

69 statements · 28% with external sources · numbers in brackets are citations

Canonical SMILES: C1=C(C=C(C(=C1I)O)I)C#N
1
Sources
1.Stated in PubChem“Ioxynil”Retrieved 2016-10-09
View statement on Wikidata ↗
Has use: herbicide
Subclass of: chemical compound

Data quality

statements

28%

externally sourced

Source last edited November 1, 2026. AIDb refreshes this page daily.

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AIDb. (2026). ioxynil (Q186546). Retrieved from https://aidb.si/e/ioxynil-Q186546