Identification of impurities in technical metalaxyl.
Impurities such as 2,6-dimethylaniline, N-methyl-2,6-dimethylaniline, N-(1-methoxycarbonyl-ethyl)-2,6-dimethylaniline, N-methyl-N-(1-methoxycarbonyl-ethyl)-2,6-dimethylaniline, N-methyl-N-(1-methoxyacetyl)-2,6-dimethylaniline, N-(1-methoxyacetyl)-2,6-dimethylaniline and N-ethyl-N-(methoxyacetyl)-2,6-dimethylaniline present in samples of technical metalaxyl were isolated by column chromatography and identified by nuclear magnetic resonance, mass spectroscopy and comparison with reference compounds.
Dureja
P
P
Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, India. pd_dureja@yahoo.com
Tanwar
R S
RS
Choudhary
P P
PP
D000409:Alanine / Q000031:analogs & derivatives* / Q000032:analysis*; D000814:Aniline Compounds / Q000032:analysis; D002849:Chromatography, Gas; D004340:Drug Contamination; D005659:Fungicides, Industrial / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy
D000814:Aniline Compounds; D005659:Fungicides, Industrial; C028175:metalaxyl; C007766:2,6-xylidine; D000409:Alanine