Product Specifications
Specifications | Parameters |
---|---|
Dye Content (By Spectrophotometry) | >70% |
Transition Range | Ph 4.3-6.3 |
Yellow-Pink | |
Ph 9.4-12.0 | |
Brown Orange-Violet | |
Solubility 0.1% (Dist. Water) | Clear Solution |
Absorption Max (0.1N Naoh) Λ₁max | 553-559Nm |
Absorption Max (0.1N Naoh) Λ₂max | 553-559Nm |
Absorptivity (A1%/1Cm At 556 Λ₁max) | >350 |
Absorptivity (A1%/1Cm At 595 Λ₂max) | >325 |
Loss On Drying (110⁰C) | <5% |
Suitability For Microscopy | Passes Test |
Specifications | Parameters |
---|
C.A.S. No. | 2321-07-5 |
C.I. No. | 45350:1 |
Molecular Weight | 332.31g/mole |
Solubility 0.1% (0.1N NaOH) | Clear yellow solution with fluorescence |
Absorption maximum(in 0.1N NaOH) | 490 – 492nm |
Absorptivity 1%/ 1cm,(in 0.1N NaOH) | >2250 |
Loss On Drying at 110 degrees C (1hr) | < 1% |
Average Stock Availability (in Kg)
- Upto 25
- 25 to 100
- 500 to 1000
- Above 1000
Fluorescein
Fluorescein is also known as a color additive (D&C Yellow 7). Fluorescein is a diagnostic contrast agent particularly used in various ophthalmic procedures, such as checking for any corneal or vessel abnormalities. The application of fluorescein also extends to bioimaging whole anatomic structures and even further to cellular components in immunohistological staining. Fluorescein appears as yellow amorphous solid or orange-red crystals. Fluorescein is used forensically to detect traces of blood, in analytical chemistry as an indicator in silver nitrate titrations and in microscopy.
It has a role as a radiopaque medium and a fluorescent dye. It is a xanthene dye, a gamma-lactone, a polyphenol, an oxaspiro compound, a member of 2-benzofurans and an organic hetero pentacyclic compound. It is functionally related to a fluorescein (acid form). Fluorescein, a phthalic indicator dye that appears yellow-green in normal tear film and bright green in a more alkaline medium, such as the aqueous humor, and is used therapeutically as a diagnostic aid in corneal injuries and corneal trauma. It has been approved by the FDA for use in externally applied drugs and cosmetics.
Fluorescein is an organic compound that has wide use as a synthetic coloring agent. Fluorescein is an ophthalmological diagnostic agent used in an eye examination to detect the presence of lesions and foreign bodies in the eyes. The primary ingredient of Fluorescein is available as ophthalmic strips and injection. The ophthalmic strip is touched to the surface of the eye for staining the eye. The injectable form is given as a shot into a vein in the eye.
This dye should be used only under the direct supervision of your ophthalmologist. Fluorescein angiography of the ocular fundus. This dye is used in an eye examination procedure to visualize the eye fundus region which helps to detect the presence of lesions and foreign bodies in the eyes.