Phen Green SK diacetate (5/6-mixture)

• CAT Number: I044338
• CAS Number: 234075-45-7
• Molecular Formula: C37H21Cl2N3O8
• Molecular Weight: 706.48
• Purity: ≥95%
• Synonyms: [6′-acetyloxy-2′,7′-dichloro-3-oxo-5-(1,10-phenanthrolin-5-ylcarbamoyl)spiro[2-benzofuran-1,9′-xanthene]-3′-yl] acetate
• IUPAC Name: [6'-acetyloxy-2',7'-dichloro-3-oxo-5-(1,10-phenanthrolin-5-ylcarbamoyl)spiro[2-benzofuran-1,9'-xanthene]-3'-yl] acetate
• InChI: InChI=1S/C37H21Cl2N3O8/c1-17(43)47-31-15-29-24(13-26(31)38)37(25-14-27(39)32(48-18(2)44)16-30(25)49-29)23-8-7-20(11-22(23)36(46)50-37)35(45)42-28-12-19-5-3-9-40-33(19)34-21(28)6-4-10-41-34/h3-16H,1-2H3,(H,42,45)
• InChIKey: INOXUAMBIQQWOK-UHFFFAOYSA-N
• SMILES: CC(=O)OC1=C(C=C2C(=C1)OC3=CC(=C(C=C3C24C5=C(C=C(C=C5)C(=O)NC6=C7C=CC=NC7=C8C(=C6)C=CC=N8)C(=O)O4)Cl)OC(=O)C)Cl

Phen Green SK Diacetate (5/6-mixture)（Cat No.:I044338）is a cell-permeable fluorescent probe used for detecting intracellular labile metal ions, particularly copper and iron. Once inside the cell, esterases cleave the diacetate groups, trapping the active dye. Its fluorescence is quenched upon binding to transition metals, allowing for sensitive monitoring of metal ion concentrations in live-cell imaging and biochemical assays. The 5/6-isomer mixture ensures broad applicability and consistent performance. Phen Green SK Diacetate is valuable in studies of metal homeostasis, oxidative stress, and metalloprotein interactions in cellular and physiological research contexts.