A zebrafish animal product is used to carry out a comparative investigation of the metabolites and biotransformation pathways of fentanyl inside the zebrafish’s liver and brain, and it is proposed which the metabolites M1 (normetabolite) and M3-b (monohydroxylation) may possibly serve as indicators of fentanyl metabolism inside the Mind. Explore https://tycoonchemstore.com/product-category/indazole-based/