4,5,6,7-Tetraiodoisobenzofuran-1,3-dione

四碘邻苯二甲酸酐

Also known as: Tetraiodophthalic anhydride, 1,3-Isobenzofurandione, 4,5,6,7-tetraiodo-, 3,4,5,6-Tetraiodophthalic anhydride, 4,5,6,7-tetraiodo-1,3-isobenzofurandione, 4,5,6,7-tetraiodo-2-benzofuran-1,3-dione, 4,5,6,7-tetraiodoisobenzofuran-1,3-quinone, Phthalic anhydride, tetraiodo-, NSC 26423

4,5,6,7-Tetraiodoisobenzofuran-1,3-dione (CAS 632-80-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8I4O3 and a molecular weight of 651.70200 g/mol. It is also known as Tetraiodophthalic anhydride, 1,3-Isobenzofurandione, 4,5,6,7-tetraiodo- and 3,4,5,6-Tetraiodophthalic anhydride. Key properties include a melting point of 327-328ºC, a boiling point of 584.2ºC at 760 mmHg, a density of 34.61 10-24cm3 and a flash point of 307.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
632-80-4
Jingsj CID
J-1383798-9
Molecular Formula
C8I4O3
Chinese Name
四碘邻苯二甲酸酐
Molecular Weight
651.70200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point327-328ºC
Boiling Point584.2ºC at 760 mmHg
Density34.61 10-24cm3
Flash Point307.1ºC

Frequently Asked Questions

What is the CAS number of 4,5,6,7-Tetraiodoisobenzofuran-1,3-dione?

The CAS number of 4,5,6,7-Tetraiodoisobenzofuran-1,3-dione is 632-80-4.

What are the molecular formula and molecular weight of 4,5,6,7-Tetraiodoisobenzofuran-1,3-dione?

4,5,6,7-Tetraiodoisobenzofuran-1,3-dione has molecular formula C8I4O3 and molecular weight 651.70200 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4,5,6,7-Tetraiodoisobenzofuran-1,3-dione (CAS 632-80-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1383798-9 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.