Description

3,3-Bis(4-Sodiooxyphenyl)-4,5,6,7-Tetraiodo-1(3H)-Isobenzofuranone CAS NO 128-72-3 is a specialized iodinated organic compound with a complex molecular structure. This chemical is valued for its unique reactivity and functional properties, making it a critical intermediate in advanced synthetic chemistry. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical and specialty chemical sectors for developing novel compounds and materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules, particularly those requiring iodinated aromatic systems.
• Chemical Research & Development: Used as a versatile reagent in organic synthesis for constructing polycyclic structures and introducing iodine atoms.
• Material Science: Potential precursor for developing specialized polymers or dyes with specific optical or electronic properties.
• Analytical Chemistry: May serve as a standard or reference compound in chromatographic or spectroscopic method development.
• Specialty Synthesis: Employed in the production of high-value, low-volume chemicals for niche industrial applications.

Basic Information

Product Name	3,3-Bis(4-Sodiooxyphenyl)-4,5,6,7-Tetraiodo-1(3H)-Isobenzofuranone
CAS No.	128-72-3
Molecular Formula	C20H8I4Na2O5
Molecular Weight	899.78 g/mol
Synonyms	3,3-Bis(4-hydroxyphenyl)-4,5,6,7-tetraiodophthalide disodium salt; Tetraiodophenolphthalein disodium salt; Iodophthalein sodium; NSC 401564; 4,5,6,7-Tetraiodo-3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one disodium salt; 3,3-Bis(p-hydroxyphenyl)-4,5,6,7-tetraiodophthalide disodium; Iodophthalein disodium
EINECS	Contact for details

Quality Control

Every batch of our 3,3-Bis(4-Sodiooxyphenyl)-4,5,6,7-Tetraiodo-1(3H)-Isobenzofuranone undergoes rigorous analytical testing to ensure high purity and batch-to-batch consistency. Our quality management system is designed to meet the stringent requirements of research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Light yellow to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.