Ugras, SerpilKaragul, BoraUlger, SultanAkbulut, DeryaAkkurt, Mustafa2025-10-112025-10-1120250040-50001754-2340https://doi.org/10.1080/00405000.2025.2457289https://hdl.handle.net/20.500.12684/21892This study aimed to synthesize the eco-friendly organic bleach magnesium bis(monoperoxyphthalate) hexahydrate (MMPP) using a modified method and to develop various chelating agents to enhance its effectiveness. Additionally, the study sought to determine the antimicrobial and cytotoxic properties of MMPP and to compare it with KMnO4, which is actively used in the denim industry. As a result of the studies, a highly efficient molecule that can be used in denim bleaching was synthesized with a new modified method specific to this study. Furthermore, maximum efficiency in bleaching applications was achieved by using C6H6MgO7 (5%) and HEDP (5%) as chelating agents. Furthermore, it was determined that MMPP has high inhibitory activity against pathogenic microorganisms at low doses (MIC values; 312.5-625.0 mu g/mL for bacteria and 4-8 mg/mL for yeast). It was determined that antibacterial dosages were not cytotoxic. MMPP did not show any toxic effect against eukaryotic cells in the range of 1 mu g/mL - 1 mg/mL. These studies were compared with KMnO4, which is used all over the world in bleaching technology and is in the class of very dangerous chemicals. It was determined that MMPP and KMnO4 have similar bleaching effects in fabric applications. KMnO4 does not have antimicrobial activity and its cytotoxic activity results are like MMPP. It can be said that MMPP has a superior feature compared to KMnO4, thanks to its antimicrobial properties. Finally, MMPP differs from existing bleach chemicals in that it has high antimicrobial activity and does not have cytotoxic activity and can be said to be a strong alternative to dangerous bleaches as KMnO4. Compared to other bleaching agents, the most significant advantage of the MMPP molecule is that it does not generate harmful by-products and poses no threat to human health or the environment.en10.1080/00405000.2025.2457289info:eu-repo/semantics/closedAccessAntimicrobial activitycytotoxic activitydenim bleachespotassium permanganatemagnesium monoperoxy phthalateorganic bleachArticle2-s2.0-85217674345WOS:001419189500001Q2Q3