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Update to Avantor’s response to the coronavirus (COVID-19) pandemic

5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE)

Supplier: Hytest Ltd

AS-81006 AS-81006-100 AS-81006-1000
103010-768EA 135.92 USD InStock
103010-768 103010-770 103010-772
5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE)
5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE)
Although FITC reagents have been more often used to prepare fluoresceinated bioconjugates, the low stability of FITC bioconjugates makes some researchers use amine-reactive succinimidyl esters of carboxyfluorescein (commonly called FAM) in bioconjugations. FAM reagents give carboxamides that are more resistant to hydrolysis. We have shown that FAM reagents require less stringent reaction conditions and give better conjugation yields, and the resulted conjugates have superior stability. We noted that FITC labeled peptides tend to deteriorate more quickly than the corresponding FAM conjugates.

  • Spectral properties: Abs/Em = 494/519 nm
  • Solvent system: DMF or DMSO
  • Appearance: Orange Powder
  • Solubility: 1 mmol in 1ml DMF
  • Storage Temperature: -20°C desiccated and protected from light
  • Shipping condition: Blue ice


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