6-Carboxyfluorescein

6-羧基荧光素

Also known as: 3',6'-Dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid, 3',6'-dihydroxy-1-keto-spiro[isobenzofuran-3,9'-xanthene]-5-carboxylic acid, 3',6'-dihydroxy-1-oxo-spiro[2-benzofuran-3,9'-xanthene]-5-carboxylic acid, 3-Oxo-3',6'-dihydroxy-1,3-dihydrospiro[isobenzofuran-1,9'-[9H]xanthene]-6-carboxylic acid, 6-Carboxyfluorescein Hydrate, 6-FAM, 6-FAM FLUOS, 6-FAM Hydrate, 6-FAM, 6-CF, 6-carboxy-fluorescein, Carboxyfluorescein, Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-6-carboxylic acid, 3',6'-dihydroxy-3-oxo-, MFCD00036873

6-Carboxyfluorescein (CAS 3301-79-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H12O7 and a molecular weight of 376.316 g/mol. It is also known as 3',6'-Dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid, 3',6'-dihydroxy-1-keto-spiro[isobenzofuran-3,9'-xanthene]-5-carboxylic acid and 3',6'-dihydroxy-1-oxo-spiro[2-benzofuran-3,9'-xanthene]-5-carboxylic acid. Key properties include a melting point of >300 °C(lit.), a boiling point of 736.4±60.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 271.0±26.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3301-79-9

Jingsj CID

J-5376-1

Molecular Formula

C₂₁H₁₂O₇

Chinese Name

6-羧基荧光素

Molecular Weight

376.316 g/mol

Category

Organic Compounds

Last updated

8/21/2026