Two product ions at m/z 324 and 253 in the spectra of metabolites M3.one and M3.2 ended up formed by cleavage of the indazole facet chains, indicating which the father or mother framework was not modified except for the terminal methyl ester. As An important metabolites, ester hydrolysis metabolites M3 https://emb-fubinaca52851.mybloglicious.com/52310912/facts-about-emb-fubinaca-revealed