Description

6-Ethyl-3-Methyl-Isoxazolo[5,4-B]Pyridine-4-Carboxylic Acid is a high-purity, heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. This compound matters as a key intermediate for the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, enabling the construction of complex molecular architectures. Pharmaceutical research and development (R&D) teams, particularly those focused on medicinal chemistry and process development, are the primary users of this specialized material.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Medicinal Chemistry Research: Used as a versatile building block for constructing focused libraries and exploring structure-activity relationships (SAR) in drug discovery programs.
• Agrochemical Synthesis: Acts as an intermediate in the development of new-generation pesticides and herbicides, leveraging its unique fused-ring system.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying biological pathways and target engagement.
• Material Science Research: Investigated as a potential monomer or precursor for specialty polymers and advanced organic materials with specific electronic properties.
• Contract Research & Manufacturing (CRAM): Supplied to organizations providing custom synthesis and process development services for the life sciences industry.

Basic Information

Product Name	6-Ethyl-3-Methyl-Isoxazolo[5,4-B]Pyridine-4-Carboxylic Acid
CAS No.	937691-36-6
Molecular Formula	C11H10N2O3
Molecular Weight	218.21 g/mol
Synonyms	6-Ethyl-3-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid; 4-Carboxy-6-ethyl-3-methylisoxazolo[5,4-b]pyridine; 6-Ethyl-3-methyl[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid; Isoxazolo[5,4-b]pyridine-4-carboxylic acid, 6-ethyl-3-methyl-; 937691-36-6; 6-Ethyl-3-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid; 6-Ethyl-3-methyl-1,2-oxazolo[5,4-b]pyridine-4-carboxylic acid
EINECS	Contact for details

Quality Control

Our 6-Ethyl-3-Methyl-Isoxazolo[5,4-B]Pyridine-4-Carboxylic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and purity, and is supplied with a comprehensive Certificate of Analysis (COA). We are committed to meeting the stringent requirements of pharmaceutical R&D and can provide material compliant with ICH guidelines for impurities.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This material is moisture-sensitive (hygroscopic); keep the container tightly sealed under an inert atmosphere if specified. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Purity (HPLC)	≥ 99.0% (Area %)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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