Description

3',6'-Dihydroxy-4',5'-Diiodo-2',7'-Dimethylspiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One is a specialized iodinated xanthene derivative, a key intermediate in the synthesis of advanced fluorescent probes and dyes. Its value lies in its precise molecular structure, which is engineered to provide specific photophysical properties essential for high-performance applications. This compound is primarily needed by research institutions and manufacturers in the life sciences, analytical chemistry, and advanced materials sectors.

Application

• Critical intermediate in the synthesis of fluorescent dyes and molecular probes for bioimaging and diagnostics.
• Building block for the development of sensor materials used in chemical detection and environmental monitoring.
• Key precursor in the production of photoinitiators and light-sensitive compounds for photopolymerization.
• Research chemical for studying energy transfer mechanisms and photochemical reactions.
• Component in the development of advanced optoelectronic materials and functional polymers.
• Used in the preparation of chromogenic substrates for enzymatic assays in biochemical research.

Basic Information

Product Name	3',6'-Dihydroxy-4',5'-Diiodo-2',7'-Dimethylspiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One
CAS No.	93919-67-6
Molecular Formula	C22H14I2O5
Molecular Weight	628.15 g/mol
Synonyms	4',5'-Diiodo-2',7'-dimethylfluorescein; Diiododimethylfluorescein; 4',5'-Diiodo-2',7'-dimethyl-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; 2',7'-Dimethyl-4',5'-diiodofluorescein; Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one, 3',6'-dihydroxy-4',5'-diiodo-2',7'-dimethyl-; Fluorescein, 4',5'-diiodo-2',7'-dimethyl-
EINECS	Contact for details

Quality Control

Our 3',6'-Dihydroxy-4',5'-Diiodo-2',7'-Dimethylspiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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