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.
A, B, C, D, E, and IL denote 1-(3-aminopropyl)imidazole, phenyl thiocyanate, intermediate complex, iodoheptane, intermediate compound, and IL, respectively (see the text for a detailed protocol).
