Also known as phaeophorbide
Pheophorbide or phaeophorbide is a product of chlorophyll breakdown and a derivative of pheophytin where both the central magnesium has been removed and the phytol tail has been hydrolyzed. It is used as a photosensitizer in photodynamic therapy.
via PubMed
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).