2920.11.00.00 - Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion)

This HTS category specifically encompasses the organophosphate insecticides known as Parathion (ISO) and parathion-methyl (ISO), also commonly referred to as methyl-parathion. These compounds are esters derived from thiophosphoric acid and are characterized by their insecticidal properties, primarily acting as acetylcholinesterase inhibitors. Their classification under this specific heading is due to their chemical structure and intended use as pest control agents.

Distinguishing this category from its sibling, 2920.19 "Other," is crucial for accurate classification. While 2920.19 covers a broader range of thiophosphoric esters and their derivatives, this particular heading is reserved solely for the explicitly named insecticides, Parathion and parathion-methyl. The specificity of the description ensures that these widely used and regulated pesticides are precisely identified for import and export purposes.

As this is a leaf node within the HTS classification system, there are no further subcategories. Therefore, the focus remains on the direct identification and classification of Parathion and parathion-methyl. Importers and exporters should ensure that shipments containing these substances are correctly declared under 2920.11.00.00, paying close attention to any associated regulatory requirements for their handling and trade.