Description

2,3-Dioxoindoline-4-Carboxylic Acid is a high-purity, versatile heterocyclic building block and key synthetic intermediate. Its unique isatin-derived structure makes it a critical precursor for the development of complex organic molecules, particularly in pharmaceutical research. This compound is essential for chemists and manufacturers in the life sciences sector seeking to synthesize novel compounds with potential biological activity.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those with indole or isatin-based cores.
• Organic Synthesis Reagent: Used in the preparation of complex heterocyclic compounds, dyes, and pigments due to its reactive carbonyl and carboxylic acid functional groups.
• Agrochemical Research: Acts as a key intermediate in the development of new crop protection agents and herbicides.
• Biochemical Research: Employed in the study of enzyme inhibitors and the development of molecular probes for biological systems.
• Material Science: Investigated as a monomer or precursor for specialty polymers and advanced organic materials.

Basic Information

Product Name	2,3-Dioxoindoline-4-Carboxylic Acid
CAS No.	41704-95-4
Molecular Formula	C9H5NO4
Molecular Weight	191.14 g/mol
Synonyms	4-Carboxyisatin; 4-Carboxy-1H-indole-2,3-dione; Isatin-4-carboxylic acid; 1H-Indole-2,3-dione-4-carboxylic acid; 2,3-Dioxo-2,3-dihydro-1H-indole-4-carboxylic acid; 4-Isatincarboxylic acid; 2,3-Diketohydroindole-4-carboxylic acid
EINECS	Contact for details

Quality Control

Our 2,3-Dioxoindoline-4-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting standards for research and development. A Certificate of Analysis (COA) detailing all specifications is provided with every 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which may affect stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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