Product Specification and Analysis

 

 

 

PRODUCT NAME:

FIP18 (Pentapotassium Salt)

 

 

 

C50H60N5O15K5

 

M.W. 1134.5 g/mol

 

Apparent Kd = 450 nM (pH 7.2)

 

Store Frozen (-20°C)

 

PROTECT FROM LIGHT

 

Soluble in H2O

 

DESCRIPTION: 

 

Pale yellow solid. A ratiometric dye with the same fluorescent properties and similar applications as Indo-1, but selectively monitors near membrane Ca2+ and has low Ca2+ affinity.

 

CATALOG NUMBER:

 

0129

 

APPEARANCE:

 

Pale Yellow Gum

 

TLC :

 

Reverse phase (C18)

Rf = > 0.9

Purity:  100%

 

ABSORPTION SPECTRUM:

 

l max (low calcium):   346 nm

Extinction:  33,000   M-1cm-1

 

 

Emission Spectrum:

 

 

low calcium: 475 nm

high calcium: 408 nm

 

Ref.: