| Customization: | Available |
|---|---|
| CAS No.: | 2,4-D: 94-75-7 |
| Formula: | 2,4-D: C8H6Cl2O3 |
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| Common Name | 2,4-Dichlorophenoxyacetic acid | ||
|---|---|---|---|
| CAS Number | 94-75-7 | Molecular Weight | 221.037 |
| Density | 1.5±0.1 g/cm3 | Boiling Point | 345.6±27.0 °C at 760 mmHg |
| Molecular Formula | C8H6Cl2O3 | Melting Point | 137 °C |
| Density | 1.5±0.1 g/cm3 |
|---|---|
| Boiling Point | 345.6±27.0 °C at 760 mmHg |
| Melting Point | 137 °C |
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.037 |
| Flash Point | 162.8±23.7 °C |
| Exact Mass | 219.969406 |
| PSA | 46.53000 |
| LogP | 2.59 |
| Vapour Pressure | 0.0±0.8 mmHg at 25°C |
| Index of Refraction | 1.573 |
| Stability | Stable, but moisture-sensitive and may be light-sensitive. Incompatible with strong oxidizing agents, corrodes many metals. Decomposes in water. |
| Water Solubility | Slightly soluble. Decomposes. 0.0890 g/100 mL |
| Common Name | MCPA | ||
|---|---|---|---|
| CAS Number | 94-74-6 | Molecular Weight | 200.619 |
| Density | 1.3±0.1 g/cm3 | Boiling Point | 327.0±27.0 °C at 760 mmHg |
| Molecular Formula | C9H9ClO3 | Melting Point | 114-118 °C(lit.) |
| Density | 1.3±0.1 g/cm3 |
|---|---|
| Boiling Point | 327.0±27.0 °C at 760 mmHg |
| Melting Point | 114-118 °C(lit.) |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.619 |
| Flash Point | 151.6±23.7 °C |
| Exact Mass | 200.024017 |
| PSA | 46.53000 |
| LogP | 2.49 |
| Vapour Pressure | 0.0±0.7 mmHg at 25°C |
| Index of Refraction | 1.552 |
| For liquid: | 200LTR/drum, 20L/drum, 1L/bottle, 500ml/bottle, 250ml/bottle, 100ml/bottle. |
| For solid: | 25 kg/drum, 25kg/bag, 1kg/bag or on the requirement of client. |
| Delivery Detail: | 20-30days |
2,4-D: Post-emergence control of annual and perennial broad-leaved weeds in cereals, maize, sorghum, grassland, established turf, grass seed crops, orchards ( fruit and stone fruit), cranberries, asparagus, sugar cane, rice, forestry, and on non-crop land (including areas adjacent to water), at 0.28-2.3 kg/ha. Control of broad-leaved aquatic weeds. The isopropyl ester can also be used as a plant growth regulator to prevent premature fruit fall in citrus fruit.
MCPA is a phenoxy herbicide, and widely used to control annual and perennial broad leaved weeds, including poppy, thistles and docks, in crops such as cereals, rice, linseed, flax, grassland and turf.
The herbicide mixture of 2,4-D and MCPA is widely used in agriculture and turf management due to their combined effectiveness against broadleaf weeds. Both are synthetic auxin herbicides (Group 4 under the HRAC/WSSA classification) that disrupt plant growth, leading to uncontrolled cell division and eventual plant death.
Cereal Crops (Wheat, Barley, Oats, Corn, Rice)
Controls broadleaf weeds like thistles, pigweed, chickweed, lambsquarters, and mustard species.
Often applied post-emergence when weeds are actively growing (early growth stages).
Pastures and Grasslands
Used to manage invasive weeds without harming grasses.
Helps improve forage quality by eliminating competing broadleaf weeds.
Turf and Lawns
Effective in golf courses, sports fields, and sod farms to maintain weed-free grass.
Targets dandelions, clover, plantain, and spurge.
Non-Crop Areas (Roadsides, Fence Lines, Industrial Sites)
Used for vegetation control in areas where broadleaf weeds are problematic.
Broader weed control spectrum than either herbicide alone.
Reduced risk of herbicide resistance due to dual-mode action (both are auxin mimics but may differ slightly in uptake and translocation).
Cost-effective compared to some newer selective herbicides.
Drift risk: Both herbicides are volatile and can damage nearby susceptible crops (e.g., soybeans, cotton, grapes, tomatoes).
Timing matters: Best applied when weeds are young (2-4 leaf stage).
Environmental concerns: Potential runoff risk to aquatic systems; some restrictions in place in certain regions.
Not for use in all crops: Check label restrictions (e.g., not safe for legumes or most vegetables).
2,4-D amine + MCPA amine (less volatile, safer for drift-prone areas).
2,4-D ester + MCPA ester (faster uptake but higher volatility).
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