32-0130

Fluorescein sodium salt

JIS special grade

• Synonym(s): Acid Yellow 73, D&C;Yellow No. 8, NaFl, NaFluo, Sodium fluorescein, Uranine
• Empirical Formula (Hill Notation): C₂₀H₁₀Na₂O₅
• CAS Number: 518-47-8
• Molecular Weight: 376.27
• Colour Index Number: 45350
• Beilstein/REAXYS Number: 3833041
• MDL number: MFCD00167039
• UNSPSC Code: 41116100
• PubChem Substance ID: 329753957

Properties

• grade: JIS special grade
• form: powder
• availability: available only in Japan
• pH: ~8.3 (20 °C, 10 g/L)
• fluorescence: λ_ex 460 nm; λ_em 515 nm(lit.)
• storage temp.: 15-25°C
• SMILES string: [Na+].[Na+].[O-]c1ccc2c(Oc3cc([O-])ccc3C24OC(=O)c5ccccc45)c1
• InChI: 1S/C20H12O5.2Na/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20;;/h1-10,21-22H;;/q;2*+1/p-2
• InChI key: RGPLGPBQJOQFJS-UHFFFAOYSA-L

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: 423.7 °F - Pensky-Martens closed cup
• flash_point_c: 217.6 °C - Pensky-Martens closed cup