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  • 8.51082 - 5(6)-Carboxyfluorescein

8.51082 EMD Millipore


5(6)-Carboxyfluorescein Novabiochem®. CAS 72088-94-9, molar mass 376.32 g/mol., Novabiochem®

  • CAS Number 72088-94-9

  • Linear Formula C₂₁H₁₂O₇

  • Molecular Weight 376.32 g/mol

  •  EC Number 276-331-1



brand family   Novabiochem
packaging   1 g in Plastic bottle (8510820001)
  5 g in Plastic bottle (8510820005)
shipped in   ambient
storage temp.   Store at +2°C to +8°C.
specifications   Colour (visual): yellow to orange
  Appearance of substance (visual): powder
  Identity (IR): passes test
  Purity (TLC (EtOAc/MeOH/H2O/DIPEA 60 : 30 : 10 : 3)): ≥ 97 %
  Assay isomers (HPLC, area%): ≥ 96.0 % (a/a)
  For TLC-Systems see our General Catalog


Background information

Novabiochem®'s 5(6)-carboxyfluorescein (FAM; λex494 nm; λem 518 nm) is a useful tool for preparing fluorescently-labeled peptides. It is supplied as a mixture of 5-and 6-isomers, making it cost effective for those applications which do not require a single isomer dye.

The product number for this product was previously 01-63-0149.

To obtain a certificate of analysis (CoA) of a lot that begins with the letter "A", please select the option in the right hand menu "Request a COA for Lot#s starting with A".

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Safety Information

HS Code 
3204 90 00
Storage class 
10 - 13 Other liquids and solids
WGK 3 highly water endangering
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