MetalaxylSolutioninAcetonitrile , 100 μg/mlinetonitrile, uncertainty of 3 % , 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 |
| 1.2ml | RMB119.20 | In Stock |
|
| others | Enquire |
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 |
| CAS DataBase Reference | 57837-19-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Dl-alanine, n-(2,6-dimethylphenyl)-n-(methoxyacetyl)-, methyl ester(57837-19-1) |
| EPA Substance Registry System | Metalaxyl (57837-19-1) |
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 |
| Hazardous Substances Data | 57837-19-1(Hazardous Substances Data) |
| Toxicity | LD50 in rats (mg/kg): 669 orally (Urech) |
