The monohydroxylated posture was determined by a 102 Da neutral loss, which corresponded to your removing of a pentanediol from your product or service ion at m/z Two metabolites made by methyl ester hydrolysis and mono-hydroxylation while in the indole ring had been made as likely biomarkers for 5F-MDMB-PICA misuse https://rarechemsonline.org/product/5f-mdmb-2201/