RCS-4
Summary RCS-4, also known as 1-pentyl-3-(4-methoxybenzoyl)indole, is a synthetic cannabinoid compound that has been marketed and sold under various names, including SR-19, BTM-4, Eric-4 (later abbreviated to E-4), and initially, OBT-199. Identifiers IUPAC name CAS Number 1345966-78-0 ChemSpider 24769418 UNII Y6911BZ2UL CompTox Dashboard (EPA) DTXSID70158820 ECHA InfoCard 100.233.383 Chemical and physical data Formula C21H23NO2 Molar …