Separation of regioisomers of metal phthalocyanines

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Silicon containing doai

Reexamination Certificate

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C514S185000, C514S410000, C540S123000, C540S131000, C540S135000, C540S145000, C424S009610, C424S009362, C106S410000, C502S163000

Reexamination Certificate

active

10493971

ABSTRACT:
The present invention refers to a process for the separation of regioisomeric mixtures of metal phthalocyanines of formula (I), to the regioisomers obtained by this process, and their use as phototherapeutic and photodiagnostic agents

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