Fluorescein disodium salt

About This Item

Molecular Formula	C₂₀H₁₀Na₂O₅
CAS Number	518-47-8

FC-0244417

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Properties

Chemical Identifiers

IUPAC Name	disodium;3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate
SMILES	C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)[O-])OC5=C3C=CC(=C5)[O-].[Na+].[Na+]
InChI Key	RGPLGPBQJOQFJS-UHFFFAOYSA-L
InChI	InChI=1S/C20H12O5.2Na/c21-11-5-7-15-17(9-11)25-18-10-12(22)6-8-16(18)19(15)13-3-1-2-4-14(13)20(23)24;;/h1-10,21H,(H,23,24);;/q;2*+1/p-2

Physical Properties

Boiling Point	620.8ºC at 760 mmHg
Melting Point	320 °C
Flash Point	232.6ºC
Density	1.601 g/cm3 (20ºC)

Safety Information

Flash Point

232.6ºC

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.