3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid, 98%

cas: 3301-79-9 — see every product listed under this CAS number, including other names

3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid, 98% (CAS 3301-79-9) is a chemical reagent available from Chemat. Available pack sizes: 100mg, 250mg, 1g, 5g, 10g, 25g, 100g. Offered by: BLDpharm.

• 2D
• 3D

6-carboxyfluorescein is a monocarboxylic acid. It is functionally related to a fluorescein (lactone form).

Source: ChEBI

Identity

Molecular formula	C21H12O7
Molecular weight	376.3 g/mol
IUPAC name	3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylic acid
InChIKey	BZTDTCNHAFUJOG-UHFFFAOYSA-N
SMILES	C1=CC2=C(C=C1C(=O)O)C3(C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O)OC2=O

Computed by PubChem (NCBI)

Synonyms: 6-Carboxyfluorescein, FLUOS, 3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid, 5(6)-carboxy fluorescein, 3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylic acid, 3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid, Spiro[isobenzofur, (3,6,9-Trihydroxyxanthen-9-yl)terephthalic Acid, Fluorescein Impurity 35, orb1307239

Isomers (same molecular formula)

4-(3-hydroxy-6-oxoxanthen-9-yl)benzene-1,3-dicarboxylic acid C₂₁H₁₂O₇

3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylic acid C₂₁H₁₂O₇