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| Product Name: | 3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid |
| CAS Registry Number: | 76823-03-5 |
| EINECS: | 276-331-1 |
| Synonyms: | 3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid; 4(5)-Carboxyfluorescein;5-Carboxyfluorescein; 5-FAM; 4-carboxyfluorescein; 76823-03-5; |
| Molecular Structure: |
![CAS No:76823-03-5 3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid](/structure/cas-768/76823-03-5.png) |
| Molecular Formula: | C21H12O7 |
| Molecular Weight: | 376.31578 |
| Density: | 1.73 g/cm3 |
| Boiling Point: | 725.2 °C at 760 mmHg |
| Melting Point: | 368-372°C |
| Flash Point: | 266.9 °C |
| Refractive index: | 1.816 |
| Hazard Symbols: | Xi: Irritant; |