Buy Ro4-1539 (Furethylnorlevorphanol) Online
Buy Ro4-1539 online and obtain a premium-quality research-grade opioid analogue for laboratory study. Ro4-1539 (furethylnorlevorphanol) is a potent synthetic opioid analgesic related to levorphanol but with significantly higher potency.
Originally developed by Hoffmann-La Roche in the 1950s, Ro4-1539 underwent rodent-based pharmacological testing and demonstrated a favorable therapeutic index. However, despite its promising results, it was never marketed as a pharmaceutical drug.
Laboratory research has shown that Ro4-1539 is a strong μ-opioid receptor agonist, with potency exceeding that of levorphanol by more than 30 times. In controlled rodent studies, it was observed to cause intense analgesia, sedation, euphoria, constipation, itching, and, at high doses, respiratory depression.
Ro4-1539 remains a research chemical with toxicological and pharmacological properties not yet fully studied. For this reason, it is intended strictly for laboratory research, analytical testing, and forensic analysis.
