Product Specification and Analysis

 

 

PRODUCT NAME:

FLUO-4 (AM)

[Fluoride analog of Fluo-3, according to US patent 5,049,673]

 

C51H50F2N2O23

 

MW = 1096.95

 

 

M.W. 1096.95 g/mol

 

Kd = 345 nM (After hydrolysis)*

 

Store Frozen (-20°C)

 

PROTECT FROM LIGHT

 

Soluble in DMSO

 

 

CAS Number/Name:

Glycine, N-[4-[6-[(acetyloxy)methoxy]-2,7-difluoro-3-oxo-3H-xanthen-9-yl]-2-[2-[2-[bis[2-[(acetyloxy)methoxy]-2-oxyethyl]amino]-5-methylphenoxy]ethoxy]phenyl]-N-[2-[(acetyloxy)methoxy]-2-oxyethyl]-, (acetyloxy)methyl ester

 

DESCRIPTION:

 

Red solid. Cell-permeable acetoxymethyl ester (AM) derivative of Fluo-4 with spectral properties similar to the parent compound. Insensitive to magnesium.

 

CATALOG NUMBER:

 

0151, 0152, 0153

 

APPEARANCE:

 

Red Glossy Solid

 

TLC :

 

Ethyl Acetate: Hexane 5:2

Rf = 0.2

Purity:  100%

 

ABSORPTION SPECTRUM:

[of the Acetoxy Methyl (AM) Ester]

 

l max:   452 nm (in Ethyl Acetate)

Extinction: 25,000 M-1cm-1

 

EMISSION SPECTRUM:

 

lmax:  516 nm (after hydrolysis)*

 

EXCITATION:

 

1H NMR:

 

494 nm (after hydrolysis)*

 

All relevant peaks present (see attached)

 

HPLC:

Solvent System:

Column:

 

Purity: 100%  (see attached)

Water/MeOH gradient 40-100%

C18

 

* Fluorescence and binding to calcium is only observed after hydrolysis to the Fluo-4 anion.