5-Carboxyfluorescein

Supplier: Anaspec Inc

Synonyms: Spiro(isobenzofuran-1(3H),9'-(9H)xanthene)-5-carboxylic acid, 3',6'-dihydroxy-3-oxo-5-Carboxyfluorescein hydrate3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid5-FAM

AS-81003 AS-81003-1 AS-81003-5
103010-754EA 119.85 USD
103010-754 103010-756 103010-758
5-Carboxyfluorescein
5-Carboxyfluorescein

5-FAM is a single isomer. It is one of the most popular green fluorescent reagents used for in situ labeling peptides, proteins and nucleotides. It has also been used to prepare various small fluorescent molecules.


  • Spectral properties: Abs/Em = 492/518 nm
  • Solvent system: DMF or DMSO
  • Appearance: Orange solid
  • Storage Temperature: -20°C desiccated and protected from light
  • Shipping condition: RT

Formula: C₂₁H₁₂O₇.xH₂O
MW: 376.32 g/mol (anhy)
Storage Temperature: Freezer
MDL Number: MFCD00036874
CAS Number: 76823-03-5

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