Description

Ethyl 3-[4-(Diethylamino)-2-ethoxyphenyl]-3-(1-ethyl-2-methyl-1H-indol-3-yl)-1,3-dihydro-1-oxoisobenzofuran-5-carboxylate is a high-purity, complex organic compound serving as a critical advanced intermediate in specialized chemical synthesis. Its unique molecular architecture, featuring fused indole and isobenzofuran moieties, makes it a valuable building block for creating sophisticated functional materials. This product is essential for research and development in the pharmaceutical and specialty chemical sectors, particularly for applications requiring precise molecular design and photophysical properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting neurological or oncological pathways.
• Functional Dye Synthesis: Core building block for producing advanced near-infrared (NIR) dyes, fluorescent probes, and laser dyes due to its extended conjugated system.
• Organic Electronics Research: Used in the development of organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and other optoelectronic materials.
• Photopolymerization Initiators: Acts as a photoinitiator or co-initiator in advanced UV-curable coatings, inks, and resin systems.
• Chemical Biology Tools: Employed in the creation of fluorescent tags and molecular probes for bioimaging and diagnostic assay development.
• Academic & Industrial R&D: Serves as a sophisticated substrate for methodological development in organic chemistry and materials science.

Basic Information

Product Name	Ethyl 3-[4-(Diethylamino)-2-ethoxyphenyl]-3-(1-ethyl-2-methyl-1H-indol-3-yl)-1,3-dihydro-1-oxoisobenzofuran-5-carboxylate
CAS No.	69898-66-4
Molecular Formula	C35H38N2O5
Molecular Weight	566.69 g/mol
Synonyms	Ethyl 3-(4-Diethylamino-2-ethoxyphenyl)-3-(1-ethyl-2-methylindol-3-yl)phthalide-5-carboxylate; 5-Carboxyethyl-3-[4-(diethylamino)-2-ethoxyphenyl]-3-(1-ethyl-2-methyl-3-indolyl)phthalide; 69898-66-4; Phthalide derivative dye intermediate; NIR dye precursor; Indole-phthalide conjugate
EINECS	Contact for details

Quality Control

Our Ethyl 3-[4-(Diethylamino)-2-ethoxyphenyl]-3-(1-ethyl-2-methyl-1H-indol-3-yl)-1,3-dihydro-1-oxoisobenzofuran-5-carboxylate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment to ensure traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). The compound is light-sensitive; prolonged exposure to light should be avoided to maintain stability and purity. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines

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