Chorophyll consists of

Chlorophyll consists of a Porphyrin head and phytol tail.
Chlorophyll is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.
A chlorophyll molecule consists of a porphyrin head (four pyrrole rings containing nitrogen arranged in a ring around a magnesium ion) and a long hydrocarbon tail.
Most chlorophylls are classified as chlorins, which are reduced relatives of porphyrins. They share a common biosynthetic pathway with porphyrins, including the precursor uroporphyrinogen III.