Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Calculated IC50 values for fentanyl and related analogues by SPR from week 5 bleeds. (A) Structures are given on the left of each fentanyl-related analogue, and (B) IC50 values (nM) with respective 95% confidence intervals given in nanomolar are reported on the right.
