5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE) ≥80% (by HPLC), BioReagent suitable for fluorescence, Sigma-Aldrich®

Supplier: Merck
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21878-100MG-F 21878-25MG-F
SIAL21878-100MG-FEA 222 GBP
SIAL21878-100MG-F SIAL21878-25MG-F
5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE) ≥80% (by HPLC), BioReagent suitable for fluorescence, Sigma-Aldrich®
5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE)

5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5(6)-FAM SE, FLUOS) may be used to prepare fluorescent derivatives of proteins such as tubulin and for the preparation of a phenytoin tracer for the determination of this and other drugs in serum and plasma by fluorescence polarization immunoassay (FPIA) and laser-induced fluorescence detection.


  • Fluorescence λex 492 nm; λem 517 nm in DMF

Formula: C₂₅H₁₅NO₉
MW: 473.39 g/mol
MDL Number: MFCD04119713
CAS Number: 117548-22-8

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