Juq-158 Guide

| Technique | Performance | |-----------|-------------| | | Retention time ~ 12.3 min on DB‑5; major fragment m/z = 91 (tropylium ion), 149, 197. | | LC‑HRMS (ESI‑+ ) | Accurate mass m/z = 312.1642 ([M+H]⁺); typical product ions: m/z = 197.0915 (pyrrolidine fragment) and 150.0652 (fluorophenyl). | | Immunoassay | No cross‑reactivity with standard drug panels (opioid, amphetamine, cannabinoid). | | Portable Raman | Peaks at 1,025 cm⁻¹ (C‑F stretch) and 1,640 cm⁻¹ (C=C aromatic). |

JUJ‑158 first appeared in the scientific literature in a 2024 pre‑print from a medicinal‑chemistry group exploring novel ligands for the and the dopamine transporter (DAT) . Since then it has been reported in a handful of analytical‑forensic publications as a “designer drug” detected in seized powders. JUQ-158

JUQ-158 is a quintessential entry in the "mature woman" (Madonna) genre, focusing on the trope of the "almighty neighbor." The plot centers around a young, somewhat hapless protagonist living in an apartment complex. His life takes a turn when he interacts with his neighbor, played by the legendary Kyoko Maki. | Technique | Performance | |-----------|-------------| | |