Description

5-Methoxy-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 makes it indispensable 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 building block in the synthesis of complex drug candidates, particularly those with indole-based or oxindole core structures.
• Organic Synthesis Research: Used as a versatile precursor for constructing fused heterocycles, spiro compounds, and other architecturally complex molecules in medicinal chemistry.
• Agrochemical Development: Employed in the research and synthesis of novel pesticides and herbicides that leverage its heterocyclic framework for biological activity.
• Material Science Precursor: Potential starting material for the development of organic semiconductors, dyes, and photoresponsive materials due to its conjugated system.
• Academic & Contract Research: Essential for methodological studies, asymmetric synthesis, and the development of new catalytic reactions in university and CRO laboratories.

Basic Information

Product Name	5-Methoxy-2-oxoindoline-3-carbaldehyde
CAS No.	52508-88-0
Molecular Formula	C10H9NO3
Molecular Weight	191.18 g/mol
Synonyms	5-Methoxyisatin-3-carboxaldehyde; 5-Methoxy-2,3-dioxoindoline-3-carboxaldehyde; 3-Formyl-5-methoxy-2-oxindole; 5-Methoxy-2-oxo-1H-indole-3-carbaldehyde; 5-Methoxyisatin-3-aldehyde; 3-Carbaldehyde-5-methoxy-2-oxindole
EINECS	Contact for details

Quality Control

Our 5-Methoxy-2-oxoindoline-3-carbaldehyde is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS). We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications.

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). This product is easily oxidized (store under inert atmosphere) and light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
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.