Home Categories Chemical pesticides Metalaxyl
A5419912

Metalaxyl , Analysis standard product, 98% , 57837-19-1

Synonym(s):
N-(2,6-Dimethylphenyl)-N-(methoxyacetyl)-DL-alanine methyl ester

CAS NO.:57837-19-1

Empirical Formula: C15H21NO4

Molecular Weight: 279.33

MDL number: MFCD00055447

EINECS: 260-979-7

Pack Size Price Stock Quantity
100MG RMB318.40 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 72-73°C
Boiling point: 422.1°C (rough estimate)
Density  1.1083 (rough estimate)
vapor pressure  7.5 x 10-4 Pa (25 °C)
refractive index  1.5130 (estimate)
Flash point: 100 °C
storage temp.  Sealed in dry,2-8°C
solubility  Chloroform (Slightly), Methanol (Slightly)
form  Solid
pka 1.41±0.50(Predicted)
color  Off-White to Pale Beige
Water Solubility  0.84 g/100 mL
BRN  2947777

Description and Uses

As an important fungicide group, acylanilides have a longer history than triazoles. Metalaxyl (44) is one of the most important fungicides in the group. It originates from the class of herbicidal chloroacetanilides, particularly metolachlor (45). Metolachlor, having a chiral carbon center and a chiral axis, is composed of four stereoisomers, the most herbicidally active one of which is the (αR, 1S)-isomer (32). For the stereoselective synthesis of this isomer, novel iridium-ferrocenyldiphosphine catalysts for the enantioselective hydrogenation of N-(2-ethyl-6-methylphenyl)- N-(1 -methoxymethyl)-ethylidene-amine are reported. In the most effective approach, the catalyst is generated in situ from [Ir(cod)Cl]2(cod = cyclooctadiene) and the ferrocenyldiphosphine ligand (R)-(S)-PPF-P(3,5-xyl)2 (46) (33).When the substrate to catalyst ratio is 106, the conversion is complete in 2 to 3 h, producing metolachlor in optical yields over 80% (34).

Agricultural fungicide. Phenylamide fungicide or use in food crops, shrubs and turf.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302-H317-H412
Precautionary statements  P261-P264-P273-P280-P301+P312-P302+P352
Hazard Codes  Xn,F
Risk Statements  22-43-52/53-36-20/21/22-11
Safety Statements  13-24-37-46-61-36-26-16
RIDADR  UN 1648 3/PG 2
WGK Germany  2
RTECS  AY6910000
HS Code  29242990
Toxicity LD50 in rats (mg/kg): 669 orally (Urech)

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