What is "chelerythrine"

Chelerythrine \Chel`e*ryth"rine\, n. [Gr. ? celandine + 'eryqro`s red.] (Chem.) An alkaloidal principle obtained from the celandine, and named from the red color of its salts. It is a colorless crystalline substance, and acts as an acrid narcotic poison. It is identical with sanguinarine. [1913 Webster] ||

n. A benzophenanthridine alkaloid extracted from the greater celandine ((taxlink Chelidonium majus species noshow=1))

Chelerythrine is a benzophenanthridine alkaloid present in the plant Chelidonium majus (greater celandine). It is a potent, selective, and cell-permeable protein kinase C inhibitor in vitro. It is also found in the plants Zanthoxylum clava-herculis and Zanthoxylum rhoifolium, exhibiting antibacterial activity against Staphylococcus aureus and other human pathogens.