Description

5-Chloro-2-Oxoindoline-3-Carbaldehyde is a versatile and high-value indole derivative, serving as a critical synthetic intermediate in advanced organic chemistry. Its unique molecular scaffold, featuring both an aldehyde and a chloro-substituted oxindole ring, makes it an indispensable building block for constructing complex heterocyclic systems. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of biologically active molecules, particularly those targeting neurological and oncological pathways.
• Agrochemical Research: Used in the development of new herbicides and pesticides due to its heterocyclic structure.
• Organic Synthesis Building Block: The reactive aldehyde and chloro groups enable diverse chemical transformations, including condensations and cross-coupling reactions.
• Material Science Research: Investigated as a monomer or precursor for functional organic materials and dyes.
• Academic & R&D Laboratories: Employed in methodological studies and the discovery of new synthetic routes for complex indole alkaloids.

Basic Information

Product Name	5-Chloro-2-Oxoindoline-3-Carbaldehyde
CAS No.	52508-86-8
Molecular Formula	C9H6ClNO2
Molecular Weight	195.60 g/mol
Synonyms	5-Chloro-3-formyloxindole; 5-Chloro-2-oxoindoline-3-carboxaldehyde; 5-Chlorooxindole-3-carboxaldehyde; 5-Chloro-1,3-dihydro-2H-indol-2-one-3-carbaldehyde; 3-Formyl-5-chlorooxindole; 5-Chloro-3-aldehydro-oxindole; 5-Chloro-2-oxindole-3-carboxaldehyde
EINECS	Contact for details

Quality Control

Our 5-Chloro-2-Oxoindoline-3-Carbaldehyde is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide full traceability and detailed Certificates of Analysis (COA) with every shipment, confirming compliance with customer specifications and industry standards for research-grade chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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