Description

6-(4-Methoxyphenyl)-3-Methylisoxazolo[5,4-B]Pyridine-4-Carboxylic Acid is a high-purity, advanced pharmaceutical intermediate with significant synthetic utility. This compound is valued for its role as a key building block in the research and development of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex heterocyclic scaffolds. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing sophisticated molecular architectures.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of potential drug candidates, especially those targeting central nervous system (CNS) disorders, inflammation, and oncology.
• Agrochemical Research: Serves as a core structure for developing new pesticides and herbicides with enhanced efficacy and selectivity.
• Chemical Biology Probe: Used in academic and industrial research to study enzyme function and biological pathways due to its unique isoxazolopyridine core.
• Material Science Precursor: Can be utilized in the development of organic electronic materials and metal-organic frameworks (MOFs).
• Custom Synthesis & Contract Manufacturing: A key starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing specialized compounds for clients.

Basic Information

Product Name	6-(4-Methoxyphenyl)-3-Methylisoxazolo[5,4-B]Pyridine-4-Carboxylic Acid
CAS No.	938001-71-9
Molecular Formula	C16H12N2O4
Molecular Weight	296.28 g/mol
Synonyms	6-(4-Methoxyphenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid; 3-Methyl-6-(4-methoxyphenyl)isoxazolo[5,4-b]pyridine-4-carboxylic acid; 938001-71-9; 6-(4-Methoxyphenyl)-3-methyl-4-isoxazolo[5,4-b]pyridinecarboxylic acid; Isoxazolo[5,4-b]pyridine-4-carboxylic acid, 6-(4-methoxyphenyl)-3-methyl-
EINECS	Contact for details

Quality Control

Our production of 6-(4-Methoxyphenyl)-3-Methylisoxazolo[5,4-B]Pyridine-4-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with each shipment, ensuring full traceability and compliance with your research or cGMP (current Good Manufacturing Practice) requirements for early-phase development.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines
Heavy Metals	≤ 20 ppm

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