Description

3-(4-Diethylamino-2-Ethoxyphenyl)-3-(1-Ethyl-2-Methyl-1H-Indol-3-Yl)Phthalide is a specialized organic compound belonging to the phthalide class, known for its unique chromogenic properties. This high-purity intermediate is critical for the synthesis of advanced functional materials, particularly in applications requiring precise color development. It is primarily utilized by manufacturers in the specialty chemicals, imaging, and advanced materials sectors. Our supply ensures consistent quality and reliability for demanding industrial and research applications.

Application

• Key Intermediate for Pressure-Sensitive Dyes: A vital precursor in the synthesis of leuco dyes used in thermal paper, carbonless copy paper, and other pressure-sensitive recording systems.
• Functional Material Synthesis: Used in the development of photochromic and thermochromic materials for smart coatings, sensors, and security inks.
• Research & Development: Serves as a building block in academic and industrial R&D for novel organic electronic materials and chromogenic compounds.
• Specialty Chemical Manufacturing: Employed in the production of high-value, performance chemicals where controlled color change is a required function.

Basic Information

Product Name	3-(4-Diethylamino-2-Ethoxyphenyl)-3-(1-Ethyl-2-Methyl-1H-Indol-3-Yl)Phthalide
CAS No.	92460-74-7
Molecular Formula	C31H34N2O3
Molecular Weight	482.62 g/mol
Synonyms	3-(4-Diethylamino-2-ethoxyphenyl)-3-(1-ethyl-2-methylindol-3-yl)-1(3H)-isobenzofuranone; 3-(4-Diethylamino-2-ethoxyphenyl)-3-(1-ethyl-2-methyl-1H-indol-3-yl)phthalide; 1(3H)-Isobenzofuranone, 3-[4-(diethylamino)-2-ethoxyphenyl]-3-(1-ethyl-2-methyl-1H-indol-3-yl)-; Leuco Dye Intermediate ODB-2; ODB-2 Precursor; 2'-Anilino-6'-(diethylamino)-3'-methylfluoran derivative; Pressure-sensitive dye intermediate.
EINECS	Contact for details

Quality Control

Our 3-(4-Diethylamino-2-Ethoxyphenyl)-3-(1-Ethyl-2-Methyl-1H-Indol-3-Yl)Phthalide is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive applications like dye synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive and should be handled under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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