Structure via PubChem · Public domain (PubChem)
2,4-dichlorophenoxyacetic acid
Sign in to saveAlso known as 2,4-D acid, 2-(2,4-dichlorophenoxy)acetic acid, dichlorophenoxyacetic acid, (2,4-dichlorophenoxy)acetic acid, (2,4-dichlorophenyloxy)acetic acid, (2,4-dichlorphenoxy)acetic acid, (dichlorophenoxy)acetic acid
chemical compound
Chemical data
- Formula
- C8H6Cl2O3
- Molecular weight
- 221.03 g/mol
- IUPAC name
- 2-(2,4-dichlorophenoxy)acetic acid
- SMILES
- C1=CC(=C(C=C1Cl)Cl)OCC(=O)O
- InChIKey
- OVSKIKFHRZPJSS-UHFFFAOYSA-N
- XLogP
- 2.8
- Polar surface area
- 46.5 Ų
- H-bond donors
- 1
- H-bond acceptors
- 3
- Formal charge
- 0
via PubChem
Research
5,196 papers- Biomonitoring of 2,4-dichlorophenoxyacetic acid (2,4-D) herbicide: A global view.Regulatory toxicology and pharmacology : RTP · 2024
- 2,4-Dichlorophenoxyacetic acid and non-Hodgkin's lymphoma: results from the Agricultural Health Study and an updated meta-analysis.Annals of epidemiology · 2017
- Insight into the mode of action of 2,4-dichlorophenoxyacetic acid (2,4-D) as an herbicide.Journal of integrative plant biology · 2014
- Exploring the Mechanism of 2,4-Dichlorophenoxyacetic Acid in Causing Neurodegenerative Diseases Based on Network Toxicology and Molecular Docking.International journal of molecular sciences · 2025
- Radioimmunoassay for 2,4-dichlorophenoxyacetic acid.Archives of toxicology · 1985
via PubMed
Wikidata facts
- Mass
- 219.969
- Has use
- herbicide
Show 13 more facts
- found in taxon
- Nicotiana tabacum
- Commons category
- 2,4-Dichlorophenoxyacetic acid
- chemical formula
- C₈H₆Cl₂O₃
- NIOSH Pocket Guide ID
- 0173
- density
- 1.57
- immediately dangerous to life or health
- 100
- melting point
- 138
- vapor pressure
- 0.4
- solubility
- 0.05
- time-weighted average exposure limit
- 10
- canonical SMILES
- C1=CC(=C(C=C1Cl)Cl)OCC(=O)O
- pKa
- 2.81
- boiling point
- 200
via Wikidata · CC0
~17 min read
Encyclopedic overview
2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula C8H6Cl2O3. It is usually referred to by its ISO common name 2,4-D. It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.
2,4-D is one of the oldest and most widely available herbicides and defoliants in the world, having been commercially available since 1945, and is now produced by many chemical companies since the patent on it has long since expired. It can be found in numerous commercial lawn herbicide mixtures, and is widely used as a weedkiller on cereal crops, pastures, and orchards. Over 1,500 herbicide products contain 2,4-D as an active ingredient.
Excerpted from Wikipedia’s “2,4-dichlorophenoxyacetic acid” article, available under the CC BY-SA 4.0 licence.