Description

4,7-Dioxo-4,7-dihydro-1H-indole-3-carboxylic acid is a high-purity, functionalized indole derivative that serves as a critical synthetic intermediate. Its unique molecular scaffold, featuring both carboxylic acid and quinone-like diketone functionalities, makes it a versatile building block for constructing complex heterocyclic systems. This compound is essential for researchers and manufacturers in the pharmaceutical and advanced materials sectors, particularly for the development of novel active pharmaceutical ingredients (APIs) and specialized organic electronic materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex heterocyclic compounds for potential drug discovery, targeting various therapeutic areas.
• Organic Semiconductor Research: Building block for developing novel π-conjugated molecules and polymers used in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Dye and Pigment Synthesis: Core structure for creating specialized indole-based dyes with specific optical properties.
• Agrochemical Development: Intermediate in the research and synthesis of new crop protection agents and plant growth regulators.
• Coordination Chemistry: Ligand for metal complexation, useful in catalysis and materials science applications.
• Academic & R&D: Valuable reagent for methodological studies in organic synthesis and heterocyclic chemistry.

Basic Information

Product Name	4,7-Dioxo-4,7-dihydro-1H-indole-3-carboxylic Acid
CAS No.	50469-21-1
Molecular Formula	C9H5NO4
Molecular Weight	191.14 g/mol
Synonyms	1H-Indole-3-carboxylic acid, 4,7-dihydro-4,7-dioxo-; 4,7-Dioxo-4,7-dihydroindole-3-carboxylic acid; 3-Carboxy-4,7-dihydroxyindole; 4,7-Dihydroxyindole-3-carboxylic acid quinone; Isatin-3-carboxylic acid (related); DHICA quinone
EINECS	Contact for details

Quality Control

Every batch of 4,7-Dioxo-4,7-dihydro-1H-indole-3-carboxylic acid is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the identity, purity, and consistency required for advanced research and scale-up processes. A Certificate of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and residual solvents is supplied with each shipment.

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). Keep the container tightly sealed in a dry environment to minimize exposure to moisture. Store away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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