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Phentetiothalein sodium

Also known as: Tetraiodophenolphthalein sodium, Iodophthalein, Iso-Iodeikon, Phenoltetraiodophthalein sodium, Phentetiothalein sodium, 3,3-Bis(4-hydroxyphenyl)-4,5,6,7-tetraiodo-1(3H)-isobenzofuranone disodium salt, 3,3-Bis(4-sodiooxyphenyl)-4,5,6,7-tetraiodo-1(3H)-isobenzofuranone

Phentetiothalein sodium (CAS 128-72-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C20H8I4Na2O4 and a molecular weight of 865.876 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128-72-3
Jingsj CID
J-1188572-2
Molecular Formula
C20H8I4Na2O4
Molecular Weight
865.876 g/mol
Category
Alcohols
Last updated
8/21/2026
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Frequently Asked Questions

What is the CAS number of Phentetiothalein sodium?

The CAS number of Phentetiothalein sodium is 128-72-3.

What are the molecular formula and molecular weight of Phentetiothalein sodium?

Phentetiothalein sodium has molecular formula C20H8I4Na2O4 and molecular weight 865.876 g/mol.

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

Last updated:

How to cite: Jingsj. "Phentetiothalein sodium (CAS 128-72-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1188572-2 (accessed 2026-11-07).

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