IUPAC: 3',6'-Dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid (76823-03-5)
Synonyms: 5(6)-Fam;5-(and-6)-carboxy snafl(r)-1 ; 5-(and-6)-Carboxy snafl(r)-2 ; 5-(and-6)-Carboxy snarf(r)-1 ; 5-(and-6)-Carboxyfluorescein ; 5-Fam ; 5-Carboxyfluorescein ; 5-cf
CAS: 76823-03-5
MF: C₂₁H₁₂O₇
MW: 376.32
MS:
EINECS: 276-331-1
Product Categories: Fluorescent Labels & Indicators
Mol File: 76823-03-5.mol
Surface Tension: 107.7 dyne/cm 
Density: 1.73 g/cm³ 
Flash Point: 266.9 °C 
MP: 368-372°C
Enthalpy of Vaporization: 111.16 kJ/mol 
Boiling Point: 725.2 °C at 760 mmHg 
Vapour Pressure: 4.5E-22 mmHg at 25°C 
 

5-Carboxyfluorescein (76823-03-5) is used as the marker of protein, peptide, antibody and Oligo.

Hazard Codes:  Xi
safety statement :22-24/25
22:Do not breathe dust
24/25:5-Carboxyfluorescein (76823-03-5) used,avoid contact with skin and eyes
WGK Germany:  3
 F:  8

Storage temp: store 5-Carboxyfluorescein (76823-03-5) at 2-8°C  
Solubility  DMF: soluble