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

2',4',5',7'-四溴-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: 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxyl, 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3-oxo-spiro[phthalan-1,9'-xanthene]-6-carboxylic acid, 2,4,5,7-Tetrabromo-3,6-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9-xanthene]-6-carboxylic acid, 6-FAM (2',4',5',7'-Br4)

2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid (CAS 3561-24-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H8Br4O7 and a molecular weight of 691.90000 g/mol. It is also known as 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxyl, 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3-oxo-spiro[phthalan-1,9'-xanthene]-6-carboxylic acid and 2,4,5,7-Tetrabromo-3,6-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9-xanthene]-6-carboxylic acid. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3561-24-8

Jingsj CID

J-1948716-6

Molecular Formula

C₂₁H₈Br₄O₇

Chinese Name

2',4',5',7'-四溴-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

691.90000 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026