Molecular Weight: 376.3
Storage: L
Soluble: H2O (pH>6), DMF
Absorption: (in nm) 492
Emission: (in nm) 517
Extinction (103): 81
Molecular Formula: C21H12O7
CAS Number: [5 isomer 76823-03-5; 6 isomer 3301-79-9]
Unit Price (USD):
100 mg $23.20
Bulk Price/unit (when you buy 5 or more): $18.56
Description:
Carboxyfluorescein is an extremely useful fluorescent reagent for monitoring intracellular pH and for general labeling of cells and tissues, because of its high extinction coefficient, water solubility and pH sensitivity.
Note:
Extinction = 29K in acidic/neutral solutions; 78K in basic solutions; Absorption = 475nm in acidic/neutral solutions; 492nm in basic solution.
References:
"Interactions between cholesterol and lipids in bilayer membranes. Role of lipid headgroup and hydrocarbon chain-backbone linkage." Bhattacharyaab S, Haldara S. Biochim. Biophys. Acta, 1467(1): 39-53 (2000)."Novel fluorescence sensing methods for high throughput screening." Lakowicz JR, Gryczynski I, Gryczynski Z. J Biomol. Screening 5(3): 123-132 (2000).
Keywords:
Carboxyfluorescein, 76823-03-5, 3301-79-9, Marker Gene 
