Figure 4.
Proposed fragmentation patterns and characteristic ions of 3,4-dihydroxy benzoic acid (1), 3,4-dihydroxy benzaldehyde (7) and 3-methoxy-4-hydroxy benzoic acid (12).
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.