Diiodofluorescein

二碘荧光素

Also known as: 3',6'-Dihydroxy-4,5-diiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, 4',5'-Diiodofluorescein, Diidofluorescein, Diiodofluoroescein, Diodofluorescein, C.I. 45425, MFCD00036461

Diiodofluorescein (CAS 31395-16-1) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H10I2O5 and a molecular weight of 584.09900 g/mol. It is also known as 3',6'-Dihydroxy-4,5-diiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, 4',5'-Diiodofluorescein and Diidofluorescein. Key properties include a melting point of 240ºC (dec.)(lit.), a boiling point of 708.5ºC at 760mmHg and a flash point of 382.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31395-16-1
Jingsj CID
J-34240-3
Molecular Formula
C20H10I2O5
Chinese Name
二碘荧光素
Molecular Weight
584.09900 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point240ºC (dec.)(lit.)
Boiling Point708.5ºC at 760mmHg
Flash Point382.3ºC

Frequently Asked Questions

What is the CAS number of Diiodofluorescein?

The CAS number of Diiodofluorescein is 31395-16-1.

What are the molecular formula and molecular weight of Diiodofluorescein?

Diiodofluorescein has molecular formula C20H10I2O5 and molecular weight 584.09900 g/mol.

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

Last updated:

How to cite: Jingsj. "Diiodofluorescein (CAS 31395-16-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34240-3 (accessed 2026-10-23).

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