sori-9409 sori-9409 sori-9409 is a mixed mu opioid receptor partial agonist and delta opioid receptor antagonist, used in biomedical research. it produces moderate analgesic effects without development of tolerance and with reduced withdrawal symptoms compared to standard opioid analgesics, as well as showing anti-addictive effects that may be useful in the treatment of alcoholism. sori-9409identifierspubchem cid9805452chemical and physical dataformulac29h27cln2o3molar mass487.00 g·mol−13d model (jsmol)interactive image smiles c1cc1cn2cc345c6=c(c3(2cc7=c4c(=c(c=c7)o)o5)o)c=c(c=n6)c8=cc=c(c=c8)cl (verify)