Iodophthalein Na

• CAT Number: I029418
• CAS Number: 2217-44-9
• Molecular Formula: C20H8I4Na2O4
• Molecular Weight: 865.88
• Purity: 98%
• Synonyms: Iodophthalein sodium; Iodophthalein Na; Foriod; Opacin; Stipolac
• Solubility: To be determined
• Appearance: Solid powder
• Storage: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
• IUPAC Name: sodium 2-((3,5-diiodo-4-oxidophenyl)(3,5-diiodo-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)benzoate
• InChI: InChI=1S/C20H10I4O4.2Na/c21-13-5-9(6-14(22)18(13)25)17(10-7-15(23)19(26)16(24)8-10)11-3-1-2-4-12(11)20(27)28;;/h1-8,25H,(H,27,28);;/q;2*+1/p-2
• InChIKey: CWHBCTLVWOCMPQ-UHFFFAOYSA-L
• SMILES: [O-]C(c1c(/C(c2cc(I)c([O-])c(I)c2)=C3C=C(C(C(I)=C3)=O)I)cccc1)=O.[Na+].[Na+]

Iodophthalein Na (Cat No.: I029418) is a water-soluble dye primarily used as a pH indicator and diagnostic reagent in laboratory and clinical settings. It exhibits a distinct color change in response to pH variations, making it useful for titrations and biochemical assays. Additionally, Iodophthalein Na has applications in liver function tests and gastrointestinal diagnostics due to its excretion properties. Its high solubility, stability, and clear color transition enhance its reliability in analytical procedures, supporting both research and clinical diagnostic workflows.

Reference

1: Pitre D, Fumagalli L. Radiopaque contrast media XXXI-Glucoside conjugation of iodophthalein in rabbit. Farmaco Sci. 1977 Jan;32(1):76-80. PMID: 844606.