Iosefamic acid

碘西法酸

Also known as: Iosefamic acid, 5,5'-(Octamethylenebis(carbonylimino))bis(N-methyl-2,4,6-triiodoisophthalamic acid), 5,5'-[Octamethylenebis(carbonylimino)]bis[3-(methylcarbamoyl)-2,4,6-triiodobenzoic acid], Benzoic acid, 3,3'-[(1,10-dioxo-1,10-decanediyl)diimino]bis[2,4,6-triiodo-5-[(methylamino)carbonyl]-, 3,3'-[(1,10-dioxodecane-1,10-diyl)diimino]bis[2,4,6-triiodo-5-(methylcarbamoyl)benzoic acid], MP 271, MP-271, Isophthalamic acid,5,5'-(octamethylenebis(carbonylimino))bis(N-methyl-2,4,6-triiodo-

Iosefamic acid (CAS 5591-33-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C28H28I6N4O8 and a molecular weight of 1309.97000 g/mol. It is also known as 5,5'-(Octamethylenebis(carbonylimino))bis(N-methyl-2,4,6-triiodoisophthalamic acid), 5,5'-[Octamethylenebis(carbonylimino)]bis[3-(methylcarbamoyl)-2,4,6-triiodobenzoic acid] and Benzoic acid, 3,3'-[(1,10-dioxo-1,10-decanediyl)diimino]bis[2,4,6-triiodo-5-[(methylamino)carbonyl]-. Key properties include a boiling point of 891.6ºC at 760 mmHg, a density of 2.365g/cm3 and a flash point of 493.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5591-33-3
Jingsj CID
J-1315391-3
Molecular Formula
C28H28I6N4O8
Chinese Name
碘西法酸
Molecular Weight
1309.97000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point891.6ºC at 760 mmHg
Density2.365g/cm3
Flash Point493.1ºC

Frequently Asked Questions

What is the CAS number of Iosefamic acid?

The CAS number of Iosefamic acid is 5591-33-3.

What are the molecular formula and molecular weight of Iosefamic acid?

Iosefamic acid has molecular formula C28H28I6N4O8 and molecular weight 1309.97000 g/mol.

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

Last updated:

How to cite: Jingsj. "Iosefamic acid (CAS 5591-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315391-3 (accessed 2026-10-25).

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