Tetraiodophenolphthalein

Also known as: Iodophthalein, Tetraiodophthalein, Iodophene, Nosophen, 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3,5-diiodophenyl)-, 3,3-Bis(4-hydroxy-3,5-diiodophenyl)-1(3H)-isobenzofuranone, 3,3,5,5-Tetraiodophenolphthalein, 3',3'',5',5''-Tetraiodophenolphthalein, NSC 4904, NSC 164900

Tetraiodophenolphthalein (CAS 386-17-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C20H10I4O4 and a molecular weight of 821.90900 g/mol. Key properties include a melting point of 268ºC (dec.)(lit.), a boiling point of 658.1ºC at 760mmHg, a density of 2.67g/cm3 and a flash point of 351.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 386-17-4
Jingsj CID: J-10453-3
Molecular Formula: C₂₀H₁₀I₄O₄
Molecular Weight: 821.90900 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	268ºC (dec.)(lit.)
Boiling Point	658.1ºC at 760mmHg
Density	2.67g/cm3
Flash Point	351.8ºC
Exact Mass	821.67600
PSA	66.76000
LogP	5.97850
Refractive Index	1.874

Frequently Asked Questions

What is the CAS number of Tetraiodophenolphthalein?

The CAS number of Tetraiodophenolphthalein is 386-17-4.

What are the molecular formula and molecular weight of Tetraiodophenolphthalein?

Tetraiodophenolphthalein has molecular formula C20H10I4O4 and molecular weight 821.90900 g/mol.

What are the upstream and downstream products of Tetraiodophenolphthalein?

For Tetraiodophenolphthalein, Upstream Products: Phenolphthalin.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Tetraiodophenolphthalein (CAS 386-17-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10453-3 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.