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2,4-D Isooctyl Ester

2,4-D Isooctyl Ester

The high-performance ester of 2,4-D. Its lipophilic character gives fast cuticle penetration and strong rainfastness, making it the preferred choice for woody and perennial broadleaf weeds, cool-season applications, and waxy species that amine salts struggle to control.

Technical specification

Common name 2,4-D Isooctyl Ester
Chinese name 2,4滴异辛酯
CAS number 25168-26-7
Molecular formula C16H22Cl2O3
Molecular weight 333.25 g/mol
Chemical group Phenoxycarboxylic acid ester
Mode of action class HRAC O / WSSA 4
Formulation 900 g/L EC

Mode of action

After spraying, the ester penetrates the leaf cuticle and is hydrolysed by plant esterases to 2,4-D acid. The acid acts as a synthetic auxin: it binds the TIR1/AFB co-receptor complex, drives degradation of Aux/IAA repressors and produces sustained, disorganised gene expression. Susceptible broadleaf plants show epinasty, stem splitting and root deformation before dying. Cereals and other grasses metabolise the acid rapidly and are tolerant.

What it controls

Annual broadleaf weeds in cereals and maizePerennial broadleaf weeds: Canada thistle, field bindweed, docksWoody brush, vine regrowth and unwanted trees on pasture and non-crop landWaxy broadleaf species in sugarcane and plantation cropsVegetation in fallow ahead of no-till sowing

Where it is used

Wheat, barley, oatsMaize, sorghumRiceSugarcanePasture, rangeland, forestry and non-crop land

Packaging & OEM

1 L, 5 L, 20 L fluorinated HDPE bottle; 200 L drum; 1000 L IBCOEM label and carton; UN-approved packaging for dangerous-goods classes

Frequently asked questions

We are a manufacturer. We own and operate the formulation plant for our core product lines, and we can source complementary actives on request to complete your range.
Yes. OEM service includes custom dosage, pack size, bottle and carton design, and multilingual leaflets. We send a production sample for approval before every run.
Yes. We supply the free-sale certificate, five-batch analysis with impurity profiles, MSDS, TDS and label artwork to support your submission.
Every batch is tested in our in-house HPLC and GC laboratory before release. Third-party pre-shipment inspection by SGS, Bureau Veritas or Intertek is available on request, with photographs and a sealed retention sample.
Send the active, formulation, concentration, pack size and destination port and you will normally have a quotation within one business day.

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