Fluorescein, disodium salt is an orange-red to dark red powder. Water-soluble form of fluorescein. Odorless and almost tasteless. pH (5% solution) 7.8. May be sensitive to prolonged exposure to light and to heat.
Irritant
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Fluorescein, disodium salt is an orange-red to dark red powder. Water-soluble form of fluorescein. Odorless and almost tasteless. pH (5% solution) 7.8. May be sensitive to prolonged exposure to light and to heat.
| Physical Description | Fluorescein, disodium salt is an orange-red to dark red powder. Water-soluble form of fluorescein. Odorless and almost tasteless. pH (5% solution) 7.8. May be sensitive to prolonged exposure to lig… |
| Color/Form | Orange-red powder |
| Melting Point | 599 to 743 °F (decomposes) (NTP, 1992) |
| Density | 1.601 (NTP, 1992) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 68 °F (NTP, 1992) |
| Vapor Pressure | Negligible (NTP, 1992) |
| IUPAC Name | disodium;2-(3-oxido-6-oxoxanthen-9-yl)benzoate |
| Molecular Formula | C20H10Na2O5 |
| Molecular Weight | 376.3 g/mol |
| CAS | 518-47-8 |
| SMILES | C1=CC=C(C(=C1)C2=C3C=CC(=O)C=C3OC4=C2C=CC(=C4)[O-])C(=O)[O-].[Na+].[Na+] |
| InChIKey | NJDNXYGOVLYJHP-UHFFFAOYSA-L |
| Catalog No | KC.610036 |
| Pack sizes | 25GM · 100GM |
⚠️ For information only; not a substitute for the official SDS.