Standard fluorescein (FAM) phosphoramidite for 5'-terminal oligonucleotide labeling, high isomeric purity single isomer. This highly purified amidite reagent ensures excellent coupling results with various synthesizers. Samples and special offers are available for oligo manufacturers. Contact us for bulk supplies of this reagent.
General properties
Appearance:
white foam
Molecular weight:
843.94
Molecular formula:
C46H58N3O10P
CAS number:
204697-37-0
Solubility:
Good solubility in acetonitrile and DCM.
Quality control:
NMR 1H and 31P (pass), HPLC-MS (95+%), isomeric purity > 97%
Storage conditions:
Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 2 weeks. Avoid prolonged exposure to light. Desiccate.
Spectral properties
Excitation maximum, nm:
494
Extinction coefficient at excitation maximum, Lmol-1cm-1:
75000
Emission maximum, nm:
520
Fluorescence quantum yield:
0.9
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