FAM NHS ester, 6-isomer，羧基荧光染料
Fluorescein (FAM) is a bright fluorophore that has found an extremely wide application in life science research. The fluorophore is hydrophilic and its derivatives possess good solubility in aqueous buffers.
Fluorescein is compatible with a wide variety of fluorescent instrumentation - most instruments are equipped with FAM channel filters.
This product contains the pure 6-isomer of fluorescein.
 
General properties:Appearance:yellow crystalline solid
Mass spec M+ increment:358.0
Molecular weight:473.39
Molecular formula:C25NO9H15
IUPAC name:(2,5-dioxopyrrolidin-1-yl) 3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylate
Solubility:good in DMF, DMSO
Quality control:NMR 1H, HPLC-MS (95%)
Storage conditions:Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
FAM NHS ester, 6-isomer，羧基荧光染料
 
Spectral properties:Excitation maximum, nm:494
ε, L⋅mol−1⋅cm−1:75000
Emission maximum, nm:520
Fluorescence quantum yield:0.9
CF260:0.20
CF280:0.17