Understanding Pesticide-Related Impurities: Key to Safety and Quality

Pesticide-related impurities refer to substances present in pesticide products that are more toxic to humans and the environment than their active ingredients. These impurities may harm crops, contaminate agricultural products, or adversely affect the stability and quality of pesticides. Monitoring such impurities is crucial, as they can cause significant environmental and health issues.

Pesticide-related impurities are vital indicators of the quality of pesticide products. They not only directly influence the product's effectiveness but also impact the safety of agricultural products, animals, plants, the environment, and human health. These impurities hold significant research value in the fields of ecological and environmental toxicology.

In pesticide registration, these impurities serve as critical indicators in the approval process for new pesticide products. By focusing on these parameters, J&K Scientific aims to contribute to the standardization of pesticide impurity management in China.

J&K Scientific’s Exclusive Pesticide Impurity Standards

J&K Scientific exclusively offers 18 categories of 53 pesticide-related impurity reference standards. These were synthesized by Associate Professor Zheng Bing of China Agricultural University and cover 15 pesticides listed in GB 2763-2021.

About Associate Professor Zheng Bing

Associate Professor Zheng Bing earned his doctorate in science from China Agricultural University in 2014 and joined the Department of Applied Chemistry, College of Science, China Agricultural University. He is currently the Deputy Director of the Department of Chemistry and focuses on:

• Pesticide research and development,
• Synthesis and metabolic mechanism studies of key metabolites,
• Metal-organic catalysis and asymmetric synthesis.

Professor Zheng has published over 20 SCI academic papers and holds seven authorized patents. Notable publications include articles in journals such as Organic Letters, Advanced Synthesis & Catalysis, and Chemistry—A European Journal. Among these, eight papers have impact factors exceeding 5.0, with a cumulative impact factor of over 60.

Product list

Pesticide type:Methiozolin

1

Product name：
Desmethyl imazamox, 95%
CAS：81335-78-6
Item number：1832058

Pesticide type: Difenthion

1

Product name：
Diafenthiuron methaneimidamide, 95%
CAS：169337-81-9
Item number：1525749

2

Product name：
N-(tert-Butyl)-n'-(2,6-diisopropyl-4-phenoxyphenyl)urea, 95%
CAS：136337-67-2
Item number：1149806

1

Product name：
1-[5-chloro-4-(1,1,2,3,3,3-hexafluoropropoxyl)phenyl]3-(2,6-difluorobenzoyl)urea, 95%
Item number：9116450

2

Product name：
N-[2,5-Dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)phenyl]amino[2,5-dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)phenyl]amino[2-Chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitro-benzamide, 95%
CAS：116493-45-9
Item number：9116452

2

Product name：
3-(2-Chloro-4-(trifluoromethyl)phenoxy)-2-nitrobenzoic acid, 95%
CAS：95899-73-3
Item number：9116453

Pesticide category: Dimethomorph

1

Product name：
3-(4-Chlorophenyl)-3-[4-(1,1-dimethylethoxy)-3-methoxyphenyl]-1-(4-morpholinyl)-2-propen-1-one, 95%
CAS：1786392-52-6
Item number：9116454

2

Product name：
(E)-3-(3-tert-Butoxy-4-methoxyphenyl)-3-(4-chlorophenyl)-1-morpholinoprop-2-en-1-one, 95%
Item number：9116455

1

Product name：
(1-Methoxy-1-oxopropan-2-yl)5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate, 95%
CAS：77509-33-2
Item number：9116456

2

Product name：
1-(Ethoxycarbonyl)ethyl 5-(2-chloro-5-(trifluoromethyl)phenoxy)-2-nitrobenzoate, 95%
Item number：9116457

3

Product name：
1-(Ethoxycarbonyl)ethyl 3-(2-chloro-4-(trifluoromethyl)phenoxy)-2-nitrobenzoate, 95%
CAS：134782-42-6
Item number：9116458

4

Product name：
2-(2-(5-(2-Chloro-4-(trifluoromethyl)phenoxy)-2-nitrobenzoyloxy)propanoyloxy)propanoic acid ethyl ester, 95%
Item number：9116459

1

Product name：
N-Nitroso ametryn, 95%
Item number：2578917

1

Product name：
(E)-Oct-5-en-2-yl-2-(4-amino-3,5-dichloro-6-fluoropyridin-2-yloxy)acetate, 95%
CAS：N/A
Item number：9116461

1

Product name：
N-Allyl-2,2-dichloroacetamide, 95%
CAS：39089-53-7
Item number：9116332

2

Product name：
N-Allyl-N-propyl-dichloroacetamide, 95%
CAS：39098-08-3
Item number：9116333

3

Product name：
N,N-Diallyl-α,α,α-trichloroacetamide, 95%
CAS：39089-57-1
Item number：9116334

4

Product name：
Tetraallylurea, 95%
CAS：37826-38-3
Item number：9116335

Pesticide type: Quinoline

1

Product name：
Heptan-2-yl-2-(5,7-dichloroquinolin-8-yloxy)acetate, 95%
Item number：9116462

2

Product name：
heptan-2-yl-2-(quinolin-8-yloxy)acetate, 95%
CAS：99607-58-6
Item number：9116463

1

Product name：
3-Bromo-1-(5-bromo-3-chloro-2-pyridinyl)-N-[4-chloro-2-methyl-6-][(methylamino)carbonyl]phenyl[4-chloro-2-methyl-6-][(methylamino)carbonyl]phenyl[2,4-Dichloro-5-][3-(chloromethyl)-4-(difluoromethyl)-5-oxo-1,2,4-triazol-1-yl]phenyl[b][1,4]oxazin-6-yl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione, 95%
CAS：103360-96-9
Item number：9116336

2

Product name：
2-(7-Fluoro-3,4-dihydro-3-oxo-4-(prop-2-ynyl)-2H-benzo[b][1,4]oxazin-6-yl)isoindoline-1,3-dione, 95%
CAS：125727-57-3
Item number：9116477

3

Product name：
4,5,6,7-Tetrahydro-2-(3,4-dihydro-3-oxo-4-(prop-2-ynyl)-2H-benzo[b][1,4]oxazin-6-yl)-2H-isoindole-1,3-dione, 95%
CAS：103361-04-2
Item number：9116478

4

Product name：
2-(7-Fluoro-3,4-dihydro-3-oxo-4-(prop-2-ynyl)-2H-benzo[b][1,4]oxazin-6-yl)-3a,4,7,7a-tetrahydro-2H-isoindole-1,3-dione, 95%
CAS：1639205-98-3
Item number：9116479

1

Product name：
N-(3-Chloro-4-hydroxyphenyl)-1-methyl-cyclohexanecarboxamide, 95%
CAS：1335041-76-3
Item number：9116480

2

Product name：
N-(2,5-Dichloro-4-hydroxyphenyl)-1-methylcyclohexanecarboxamide, 95%
Item number：9116481

3

Product name：
N-(3,5-Dichloro-4-hydroxyphenyl)-1-methylcyclohexane-1-carboxamide, 95%
CAS：126833-16-7
Item number：9116482

4

Product name：
N-(2,3-Dichloro-4-hydroxyphenyl)-2-methylcyclohexanecarboxamide, 95%
Item number：9116483

1

Product name：
(4R,5R)-5-(4-Chlorophenyl)-4-methyl-3-(nitroformyl)thiazolidin-2-one, 95%
Item number：9116484

2

Product name：
(4R,5R)-5-(4-Chlorophenyl)-N-(3-hydroxycyclohexyl)-4-methyl-2-oxothiazolidine-3-carboxamide, 95%
Item number：9116485

3

Product name：
(4R,5R)-5-(4-Chlorophenyl)-N-(4-hydroxycyclohexyl)-4-methyl-2-oxothiazolidine-3-carboxamide, 95%
Item number：9116486

4

Product name：
(4R,5R)-5-(4-Chlorophenyl)-N-(3,4-dihydroxycyclohexyl)-4-methyl-2-oxothiazolidine-3-carboxamide, 95%
Item number：9116487