Folinic acid is a biologically active form of folic acid that is commonly used in nutritional supplements and medical treatments. However, like all chemical compounds, it may contain impurities that can affect its safety, efficacy, and quality. These impurities may arise during the manufacturing process, storage, or handling, and can include chemical by-products, residual solvents, heavy metals, and microbial contaminants. Analyzing and controlling these impurities is crucial for ensuring the purity and potency of folinic acid
