Coptisine chloride (CAS No 6020-18-4) is an isoquinoline alkaloid primarily studied in the field of biomedical research for its various pharmacological activities It is derived from traditional Chinese medicinal plants such as Coptis chinensis This compound exhibits significant biochemical activity through modulation of multiple pathways including antioxidant anti-inflammatory and antimicrobial activities Coptisine chloride is particularly noted for its interactions with essential enzymes and pathways within cellular systems Its in vitro activity is typically observed in the nanomolar to low micromolar range It is extensively used in cell models and animal studies providing valuable insights into therapeutic potentials for inflammatory and infectious diseases Experimental concentrations typically depend on the specific research design These studies contribute to drug screening and development efforts helping to elucidate the compound s potential use in clinical settings