Description

3H-Dibenz[F,Ij]Isoquinoline-1-Carboxylic Acid, 6-[(4-Chloro-2-Sulfophenyl) Amino]-2,7-Dihydro-4(Or 5)-Methyl-2,7-Dioxo-, 1-Ethyl Ester is a complex, high-value organic intermediate characterized by its fused polycyclic structure and functional groups including sulfonic acid and carboxylic acid ester. This compound matters as a critical building block for synthesizing advanced dyes, pigments, and functional materials requiring specific light-absorption and chemical resistance properties. It is primarily needed by manufacturers in the specialty chemicals sector, particularly those developing high-performance colorants and optical materials.

Application

• Key intermediate for high-performance dyes and pigments, especially for applications requiring thermal stability and color fastness.
• Synthesis of functional dyes for specialized applications in imaging technologies and non-linear optics.
• Precursor in the development of charge-control agents and other functional additives for the toner and printing industries.
• Research and development chemical for novel organic semiconductors and photoconductive materials.
• Building block for liquid crystal dyes and other advanced materials in display technology.
• Specialty chemical intermediate in the synthesis of pharmaceuticals and agrochemicals requiring a complex heterocyclic core.

Basic Information

Item	Detail
Product Name	3H-Dibenz[F,Ij]Isoquinoline-1-Carboxylic Acid, 6-[(4-Chloro-2-Sulfophenyl) Amino]-2,7-Dihydro-4(Or 5)-Methyl-2,7-Dioxo-, 1-Ethyl Ester
CAS No.	72121-77-8
Molecular Formula	C25H19ClN2O7S
Molecular Weight	526.95 g/mol
Synonyms	1-Ethyl 6-[(4-chloro-2-sulfophenyl)amino]-2,7-dihydro-4-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinoline-1-carboxylate; C.I. Pigment Yellow 192; PY192; 72121-77-8; 6-[(4-Chloro-2-sulfophenyl)amino]-2,7-dihydro-4-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinoline-1-carboxylic acid ethyl ester; Ethyl 6-((4-chloro-2-sulfophenyl)amino)-2,7-dihydro-4-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinoline-1-carboxylate
EINECS	Contact for details

Quality Control

Our production of 3H-Dibenz[F,Ij]Isoquinoline-1-Carboxylic Acid, 6-[(4-Chloro-2-Sulfophenyl) Amino]-2,7-Dihydro-4(Or 5)-Methyl-2,7-Dioxo-, 1-Ethyl Ester adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with agreed specifications. Certificates of Analysis (COA) documenting all critical quality attributes are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is light-sensitive; prolonged exposure to light should be avoided to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange 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.