###### Abstract  
The excessive use of synthetic pesticides has not only resulted in increased resistance among weeds and pests, leading to significant economic loss, but has also raised serious health and environmental concerns. Chalcones and their derivatives, known for their herbicidal, fungicidal, bactericidal, and antiviral properties, are emerging as promising bio-based candidates. These naturally occurring compounds have long been recognized for their beneficial health effects and wide-range applications. However, their limited concentration in plants, along with poor solubility and bioavailability, brings challenges for their development. The aim of this study was to examine the properties of a synthetic substance, pinocembrin dihydrochalcone (3-phenyl-1-(2,4,6-trihydroxyphenyl)-1-propanone), including its soil dissipation and adsorption. Additionally, we evaluated its antioxidant activity through the DPPH assay and FRAP experiments. This analysis aims to provide insights into its potential classification as a low risk pesticide. pincoembrin dihydrochalcone; biopesticide; soil dissipation; partition coefficient; DPPH; FRAP; chalcones 2020  
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[PERSON], M.  
advanced analytical technique development, it has been discovered that dihydrohalcones are more widely distributed in nature. Apples are considered to be the richest dietary source of these compounds, which are also found in the leaves and roots of the apple and in hairy roots obtained through genetic transformation [8]. In addition, dihydrohalcones were also found in other different plant families, including _Asteraceae_, _Lauraceae_, and _Salicaceae_[9; 10]. Pinocembrin dihydrohalcone has demonstrated effectiveness against a wide range of target pathogens, including fungi such as _Phytophthora_, _Pythium_, downy mildew (_Pseudopernospora cubensis_, _Plasmopara_), _Colletotrichum_, _Rhizoctonia_, and rust (_Puccinia triticina_), as well as bacteria like _Xanthomonas_ and _Pseudomonas_. These compounds have been tested on various host plants, including vegetables, leafy greens, fruits, and wheat [11; 12]. [PERSON] et al. [13] demonstrated that \(2^{\prime}\mathcal{A}^{\prime}\)-dihydroxydrochalcone and its synthetic analogs show great promise as potential anti-_Saprolegnia_ agents, largely due to their high lipophilicity, particularly in molecules with alkyl chains longer than 10 carbon atoms. These compounds are considered promising scaffolds for the development of new, potent anti-oomycete agents. Therefore, in light of the proven fungicidal and bactericidal properties of pinocembrin dihydrohalcone, antioxidant properties were evaluated, because very often they occur parallelly. Dihydrochalcones are known as potent antioxidants, with their other bioactivities linked to their antioxidant properties [14]. Thus, determination of the antioxidant activity is crucial for evaluating their biodegradability in the environment. Antioxidants can impact decomposition processes by influencing radicals and redox reactions, which directly supports the rationale behind our experiments [15]. There are many various methods for the evaluation of antioxidant capacity, but for our needs DPPH and FRAP tests were employed. It should be emphasized that antioxidant activity must not be tested on the basis of only one particular assay. Ideally, several methods should be performed in order to assess the antioxidant capacity for the chosen analyte. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay is a widely used, quick, simple, and cost-effective method for evaluating antioxidant activity by using free radicals. This assay measures the ability of compounds to act as hydrogen donors or free radical scavengers (FRSs). In the DPPH test, a stable free radical, DPPH, is reduced in the presence of an antioxidant, leading to a change in its distinctive purple color, which has a strong absorbance peak at 517 nm. When an FRS antioxidant reacts with DPPH, it forms DPPH-H, resulting in decreased absorbance and a color shift from purple to yellow as hydrogen atoms are donated.