Fig. 3.
Selected parts of the 1H-13C HSQC nuclear magnetic resonance (NMR) spectrum of L919/B.
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.