[Process for producing fluorescein for injection purposes (author's transl)]

Area of Science:

• Organic Chemistry
• Pharmaceutical Chemistry

Context:

• Fluorescein is a vital dye used in medical diagnostics and treatments.
• Existing production methods may yield impurities that are unsuitable for injection.

Purpose:

• To describe a novel purification process for producing high-purity fluorescein suitable for injection.

Summary:

• The process involves separating synthesis-induced by-products from raw fluorescein.
• Key steps include sequential monoacetylation and diacetylation, followed by saponification and precipitation.
• This clean-up chain ensures the removal of impurities, yielding high-purity fluorescein.

Impact:

• Enables the production of a safer, high-purity fluorescein for pharmaceutical applications.
• Improves the quality and reliability of fluorescein used in medical injections.
• Provides a scalable method for pharmaceutical-grade fluorescein synthesis.