A2B2 Porphyrin
A2B2 Porphyrin serves as an ideal building block for standardized photosensitizers and highly stable imaging probes in biomedicine. Its key advantage lies in the exceptional stability and predictable modification patterns provided by its symmetrical bifunctional structure. Using paired functional groups (e.g., Acid, Hydroxyl), it enables high-loading, uniform bioconjugation—such as simultaneous attachment of PEG chains to improve solubility and targeting molecules to enhance accumulation efficiency.
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