ChemicalBook--->CAS DataBase List--->79270-78-3

79270-78-3

79270-78-3 Structure

79270-78-3 Structure
IdentificationBack Directory
[Name]

2-Ethylhexyl 2-(2,4-dichlorophenoxy)propionate
[CAS]

79270-78-3
[Synonyms]

2,4-DP ethyl hexyl
2,4-dp,2-ethylhexyl
2,4-dp,2-ethylhexylester
dichlorprop isooctyl ester
DICHLORPROP-2-ETHYLHEXYL ESTER
DICHLOROPROP-2-ETHYLHEXYL ESTER
2,4-DP ethyl hexyl@100 μg/mL in MeOH
DICHLOROPROP-2-ETHYLHEXYLESTER PESTANAL,
2-Ethylhexyl 2-(2,4-dichlorophenoxy)propionate
2-(2,4-Dichlorophenoxy)propanoic acid 2-ethylhexyl ester
2-(2,4-Dichlorophenoxy)-propionic acid 2-ethylhexyl ester
[EINECS(EC#)]

279-123-9
[Molecular Formula]

C17H24Cl2O3
[MDL Number]

MFCD00144109
[MOL File]

79270-78-3.mol
[Molecular Weight]

347.28
Chemical PropertiesBack Directory
[Boiling point ]

406.2±30.0 °C(Predicted)
[density ]

1.132±0.06 g/cm3(Predicted)
[Fp ]

100 °C
[storage temp. ]

0-6°C
[EPA Substance Registry System]

Dichlorprop 2-ethylhexyl ester (79270-78-3)
Safety DataBack Directory
[Symbol(GHS) ]

Environment (GHS09)
GHS09
[Signal word ]

Warning
[Hazard statements ]

H400
[Precautionary statements ]

P273
[Hazard Codes ]

N
[Risk Statements ]

50/53
[Safety Statements ]

60-61
[RIDADR ]

UN 2810
Hazard InformationBack Directory
[Production Methods]

The industrial manufacture of dichlorprop-etexyl follows the same pattern used for other phenoxy-propionate herbicide esters: first produce purified dichlorprop acid, then convert it into the desired ester under controlled conditions. Upstream, manufacturers generate dichlorprop acid by chlorinating and alkylating the phenoxypropionate framework, followed by resolution or controlled synthesis to achieve the required isomer ratio and then purifying the acid to technical grade. To create the etexyl ester, the acid is reacted with 2-ethylhexanol under controlled esterification conditions, typically using an acid catalyst and continuous water removal to drive the equilibrium toward full conversion while limiting by-products. Once esterification is complete, the reaction mixture is neutralised, washed, and subjected to solvent removal and either crystallisation or distillation to isolate technical grade dichlorprop-etexyl.
[Mechanism of action]

Selective, systemic, absorbed through leaves and translocates to roots. Synthetic auxin causing stem and leaf malformations leading to death.
[Pesticide Type]

Herbicide
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