A type of chlorophyll found in marine red algae and cyanobacteria, and absorbs the infrared light of the electromagnetic spectrum. It is the major chlorophyll in cyanobacteria living in an environment depleted in visible light but abundant in infrared light. Its molecular formula is C54H70O6N4Mg.
There are different forms of chlorophylls existing in nature. Some of them are:
They all reflect the green light but the slight differences in their structure cause them to appear in different shades of green.