pyrroporphyrin

noun

pyr·​ro·​porphyrin

¦pi(ˌ)rō+

: a dark red crystalline pigment C₃₂H₃₆N₄O₂ with a violet metallic luster that is the lower homologue of phylloporphyrin and that differs from most porphyrins in being a hepta-substituted derivative of porphin rather than an octa-substituted one

Word History

Etymology

International Scientific Vocabulary pyrrh- + porphyrin

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