Dichlorprop

• (±) -2 - ( 2,4- dichlorophenoxy ) propionic acid
• Rac-2- (2,4- dichlorophenoxy ) propionic acid
• (RS ) -2 - (2,4- dichlorophenoxy ) propionic acid
• 2,4 -DP

White to yellow solid, phenol -like odor as a technical product

Fixed

1.42 g · cm -3 ( dichlorprop )

116-120 ° C [( R) - ( )- dichlorprop, dichlorprop -P]

3.1 ( dichlorprop )

Very poor in water ( 350 mg · l-1 at 20 ° C) ( dichlorprop )

Risk

• 344 mg · kg -1 ( LD50, Rat, oral, dichlorprop )
• > 825 mg · kg -1 ( LD50, Rat, oral, dichlorprop -P)

Template: Infobox chemical / molecular formula search available

Dichlorprop is a chemical compound that is used as a herbicide and plant growth regulator. It contains a chiral center, therefore, there are two isomers ( R)-form and the ( S) form. Dichlorprop is a 1:1 mixture (racemate ) of the ( R) form and the ( S) form. Dichlorprop -P - the pure ( R) -enantiomer of Diclorprop - has been approved in Germany and Austria as a post-emergence herbicide against broad-leaved weeds in cereal crops. In pesticides Directory Switzerland ( accessed on 1 August 2013) the substance is no longer listed.

Safety

Dichlorprop is classified as harmful and acts in a toxic concentration mainly on the central and peripheral nervous system, and long-term effects of storage in the fat and brain are not excluded. The racemic dichlorprop has a significantly higher toxicity ( oral LD50 for rats 344 mg / kg body weight) than the pure ( R)-form ( 825 mg / kg).

Derived compounds

Shown in brackets, the CAS number.

• Dichlorprop- butotyl [ 53404-31-2 ]
• Dichlorprop- dimethylammonium [ 53404-32-3 ]
• Dichlorprop- ethylammonium [ 84731-66-8 ]
• Dichlorprop -2 -ethylhexyl [ 79270-78-3 ]
• Dichlorprop- isoctyl [ 28631-35-8 ]
• Dichlorprop -methyl [ 57153-17-0 ]
• Dichlorprop- potassium [ 5746-17-8 ]
• Dichlorprop- sodium [ 39104-30-8 ]

(R) - isomer of dichlorprop dichlorprop -P has the name [ 15165-67-0 ].