3d image of porphyrin skeletal formula

porphyrin heterocyclic macrocycle organic compound pyrrole porphine aromatic conjugated system electromagnetic spectrum complexes myoglobin hemoglobin cytochromes metal heme metalloporphyins petroporphyrin geologic crude oil oil shale coal sedimentary rocks organic geochemistry porphobilinogen photodynamic therapy pdt verteporfin macular degeneration biomarker environmental toxicology anti-inflammatory agent anti-cancer anti-oxidant biomimetic catalysis molecular electronics photonics dye-sensitized solar cells phthalocyanines supramolecular chemistry antiaromatic mobius aromatic porphyrinoid macrocycles 3d molecule molecular formula