5(6)-carboxyfluorescein succinimidyl ester (Fluorescein-NHS) is an amine reactive green fluorescent dye with excitation/emission wavelength at 495 nm/515 nm.

Specifications:

• Appearance: Orange solid;
• Ex/Em wavelength: 495/515 nm;
• Reactive group: Succinimidyl ester (NHS);
• Reactive toward: Primary amine (-NH₂);
• Purity: >95%;

Storage Conditions:

• Store at -20 ⁰C. Protect from light.