Fluorescein

About This Item

Molecular Formula	C₂₀H₁₂O₅
CAS Number	2321-07-5

FC-0493394

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Properties

Chemical Identifiers

IUPAC Name	3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
SMILES	C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O
InChI Key	GNBHRKFJIUUOQI-UHFFFAOYSA-N
InChI	InChI=1S/C20H12O5/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

Physical Properties

Boiling Point	620.8±55.0 °C at 760 mmHg
Melting Point	315 dec °C
Flash Point	232.6±25.0 °C
Density	1.6±0.1 g/cm3

Safety Information

Hazard Class

Warning

Flash Point

232.6±25.0 °C

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.