5-FAM [76823-03-5]

Chemodex

5-FAM [76823-03-5]

10

76823-03-5

Research Use Only

>99%

C21H12O7

376.32

Chemical. CAS: 76823-03-5. Formula: C21H12O7. MW: 376.32. Synthetic. The amine-reactive fluorescein derivatives are probably the most common fluorescent derivatization reagents for covalently labeling proteins. Carboxyfluorescein is better retained in cells than is fluorescein, its pKa of ~6.5 is lower than the cytosolic pH of most cells (pH ~6.8-7.4). Carboxyfluorescein is commonly employed as a polar tracer. - The amine-reactive fluorescein derivatives are probably the most common fluorescent derivatization reagents for covalently labeling proteins. Carboxyfluorescein is better retained in cells than is fluorescein, its pKa of ~6.5 is lower than the cytosolic pH of most cells (pH ~6.8-7.4). Carboxyfluorescein is commonly employed as a polar tracer.

OC(=O)C1=CC=C(C(=C1)C(O)=O)C1=C2C=CC(=O)C=C2OC2=CC(O)=CC=C12

2°C to 8°C

12352200