An official website of the United States government
Here's how you know
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.
Electronic absorption spectra of methyl 3-acetyl-20-bromo-3-devinyl pyropheophorbide-a9, 3-acetyl-10-bromo-ring-B reduced chlorin 14 and the methyl 3-acetyl-10-bromo-bacterio pyropheophorbide-a17 in dichloromethane.