Best USP Fluorescein Sodium Salt CAS 518-47-8 for Ophthalmology Manufacturers, Companies
Product Description
Fluorescein Sodium is an orange-red crystalline powder with strong yellow-green fluorescence in aqueous solution. Medical grade is widely used for ophthalmic fundus angiography and corneal wound inspection. It has excellent water solubility and stable fluorescent properties.
1. Strong Fluorescence & High Sensitivity
As a xanthene fluorescent dye, its aqueous solution emits bright yellow-green fluorescence under excitation light. High quantum yield enables detection at ultra-low concentrations, ideal for tracing, leak testing, and fluorometric analysis.
2. Excellent Water Solubility
As the disodium salt of fluorescein, it dissolves readily in water for aqueous preparation. The fluorescent signal remains stable under the physiological pH range.
3. Good Solid-State Stability
Orange-red to reddish-brown powder. Solid powder remains stable under dry and dark storage. Its fluorescence intensity varies with pH, making it usable as a pH indicator probe.
| Items | Specification | Result |
|---|---|---|
| Fluorescein Sodium | 99% | 99.02% |
| Organoleptic | ||
| Appearance | Fine Powder | Conforms |
| Color | White powder | Conforms |
| Odor | Characteristic | Conforms |
| Taste | Characteristic | Conforms |
| Physical Characteristics | ||
| Particle Size | NLT 100% Through 80 mesh | Conforms |
| Loss on Drying | <=12.0% | Conforms |
| Ash (Sulphated Ash) | <=0.5% | Conforms |
| Total Heavy Metals | ≤10ppm | Conforms |
| Microbiological Tests | ||
| Total Plate Count | ≤10000cfu/g | Conforms |
| Total Yeast & Mold | ≤1000cfu/g | Conforms |
| E.Coli | Negative | Negative |
| Salmonella | Negative | Negative |
| Staphylococcus | Negative | Negative |
Fundus angiography injection, corneal diagnostic eye drops, lacrimal patency test raw material.
| Weight | Packing Method |
|---|---|
| 1kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10kgs, 25kg or more | by Drums or carton (2 layers plastic bag inside) |
| Weight | Delivery Method | Delivery Time | Destination |
|---|---|---|---|
| 1kg - 25kgs | EMS, DHL, UPS, FedEx | 3-7 days | Door to door |
| 25kgs - 100kgs | DHL, FedEx, by Air | 3-7 days | Door to door (to Airport by Air) |
| More than 100kgs | by Air | 3-7 days | Door to Airport |
| by Sea | 10-35 days | Door to port |
