5-Carboxyfluorescein

5-羧基荧光素

Also known as: 5-FAM, 5-CF, FAM, 3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid, 3',6'-Dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid, 3',6'-Dihydroxy-3-oxo-spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-5-carboxylic Acid, 3',6'-dihydroxy-3-keto-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid, 3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid, Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-5-carboxylic acid, 3',6'-dihydroxy-3-oxo-, 5-Carboxyfluorescein, 5-Carboxyfluorescein (5-FAM)

5-Carboxyfluorescein (CAS 76823-03-5) 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 5-FAM, 5-CF and FAM. Key properties include a melting point of 368-372°C, a boiling point of 725.2±60.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 266.9±26.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

76823-03-5

Jingsj CID

J-32492-0

Molecular Formula

C₂₁H₁₂O₇

Chinese Name

5-羧基荧光素

Molecular Weight

376.316 g/mol

Category

Organic Compounds

Last updated

8/21/2026