2',4,4',5',7,7'-Hexachloro-3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid

2',4,4',5',7,7'-六氯-3',6'-二羟基-3-氧代-3H-螺[异苯并呋喃-1,9'-氧杂蒽]-6-羧酸

Also known as: 6-HEX, 6-Carboxy-2',4,4',5',7,7'-hexachlorofluorescein, Hexachloro-6-carboxyfluorescein, 2',4',5',7'-Tetrachloro-6-carboxy-4,7-dichlorofluorescein, 2',4,4',5',7,7'-Hexachloro-3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthene]-6-carboxylic acid

2',4,4',5',7,7'-Hexachloro-3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid (CAS 155911-16-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H6Cl6O7 and a molecular weight of 582.98600 g/mol. It is also known as 6-HEX, 6-Carboxy-2',4,4',5',7,7'-hexachlorofluorescein and Hexachloro-6-carboxyfluorescein. Key properties include a boiling point of 794.8±60.0 °C(Predicted) and a density of 2.06±0.1 g/cm3(Predicted). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

155911-16-3

Jingsj CID

J-1315773-7

Molecular Formula

C₂₁H₆Cl₆O₇

Chinese Name

2',4,4',5',7,7'-六氯-3',6'-二羟基-3-氧代-3H-螺[异苯并呋喃-1,9'-氧杂蒽]-6-羧酸

Molecular Weight

582.98600 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026