Fluorescein is an organic compound and dye based on the xanthene tricyclic structural motif, formally belonging to triarylmethine dyes family. It is available as a dark orange/red powder slightly soluble in water and alcohol. It is used as a fluorescent tracer in many applications. [1]

Fluorescein may cause yellow discoloration of skin or eyes. urine may attain a bright yellow color. Adverse effects following intravenous administration include nausea, vomiting, headache, dizziness, fainting, and low blood pressure.

Fluorescein is an organic compound and dye. It is based on xanthene and belongs to triarylmethine dye family. It is available as a dark orange/red powder and used in water and alcohol. It is widely used as a fluorescent tracer. The color of its solutions is green by reflection and orange by transmission. [1]

Abbey Color is the preferred supplier of fluorescein dye to the optical industry for use in diagnostics for corneal trauma. Fluorescein has also found use as a suitable replacement for luminol for blood detection and crime scene investigations.

Fluorescein, a synthetic organic compound, has become an indispensable tool in biological research due to its fluorescent properties. Its bright green fluorescence under ultraviolet or blue light makes it ideal for various labeling applications …

2024年5月21日 · Fluorescein is a fluorescent dye which is used in a number of different applications in the sciences and medicine. In pure state, fluorescein is a red or orange powder which is dissolved in alkaline solutions to make up a yellow solution which will glow green.

Fluorescein is known as the color additive named D&C Yellow no. 7, and its disodium salt is called D&C Yellow no. 8. Fluorescein under UV illumination. Fluorescein has an absorption maximum at 494-nanometer (nm) wavelength, and an emission maximum of 521 nm (in water).

Fluorescein, organic compound of molecular formula C20H12O5 that has wide use as a synthetic colouring agent. It is prepared by heating phthalic anhydride and resorcinol over a zinc catalyst, and it crystallizes as a deep red powder with a melting point in …

fluorescein A green dye that fluoresces bright yellow in blue or ultraviolet light. It is used to tag (label) and thus show up ANTIBODIES in tissues. It is also much used by eye specialists (ophthalmologists) to show up ulcers on the cornea and to delineate for photography the blood vessels of the retina.

2013年3月25日 · Crystalline or powdered fluorescein is reddish orange, but in alkaline solution it has an intense yellow-green fluorescence. Because of its fluorescence, it was used to dye the Chicago River for St. Patrick’s Day, beginning in 1962.