Displaying 1 results of Fenpropidin Impurities Fenpropidin is a fungicide used to control fungal diseases on crops. However, during the manufacturing process, impurities may be formed as by-products. These impurities are unwanted and must be removed through purification processes. The impurities in fenpropidin can impact its efficacy, safety, and stability, which is why it is important to identify and control them to ensure the final product meets quality standards.