RCS-4

• CAT Number: R053789
• CAS Number: 1345966-78-0
• Molecular Formula: C21H23NO2
• Molecular Weight: 321.42
• Purity: ≥95%
• Synonyms: (4-Methoxyphenyl)(1-pentyl-1H-indol-3-yl)methanone
• Storage: -20°C
• IUPAC Name: (4-methoxyphenyl)-(1-pentylindol-3-yl)methanone
• InChI: InChI=1S/C21H23NO2/c1-3-4-7-14-22-15-19(18-8-5-6-9-20(18)22)21(23)16-10-12-17(24-2)13-11-16/h5-6,8-13,15H,3-4,7,14H2,1-2H3
• InChIKey: OZCYJKDWRUIFFE-UHFFFAOYSA-N
• SMILES: CCCCCN1C=C(C2=CC=CC=C21)C(=O)C3=CC=C(C=C3)OC

RCS-4 is a synthetic cannabinoid belonging to the indole family, designed to mimic the effects of THC, the active compound in cannabis. It acts as a potent agonist of the CB1 and CB2 cannabinoid receptors, producing psychoactive effects similar to those of natural cannabinoids. RCS-4 has been found in various “spice” or “herbal incense” products, often marketed as legal alternatives to cannabis. However, its use raises significant health concerns due to unpredictable potency, potential for abuse, and association with adverse effects, leading to regulatory control in many countries.