Description

5-Chloro-6-Cyclopropyl-3-Methyl-Isoxazolo[5,4-B]Pyridine-4-Carboxylic Acid is a high-purity, advanced pharmaceutical intermediate characterized by its complex heterocyclic structure. This compound is of significant commercial value for its role as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs). It is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for the development of new therapeutic and crop protection agents.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly in medicinal chemistry research.
• Active Pharmaceutical Ingredient (API) Development: Serves as a core scaffold for the development of new APIs targeting various disease pathways.
• Agrochemical Research: Used in the research and development of new generation pesticides and herbicides.
• Chemical Synthesis Building Block: Employed in organic synthesis for constructing complex heterocyclic molecules in academic and industrial R&D.
• Contract Manufacturing & Custom Synthesis: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects.

Basic Information

Product Name	5-Chloro-6-Cyclopropyl-3-Methyl-Isoxazolo[5,4-B]Pyridine-4-Carboxylic Acid
CAS No.	1011396-41-0
Molecular Formula	C12H9ClN2O3
Molecular Weight	264.66 g/mol
Synonyms	5-Chloro-6-cyclopropyl-3-methyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid; 5-Chloro-6-cyclopropyl-3-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid; 4-Carboxy-5-chloro-6-cyclopropyl-3-methylisoxazolo[5,4-b]pyridine; 1011396-41-0; Isoxazolopyridine-4-carboxylic acid derivative; 5-Chloro-6-cyclopropyl-3-methyl-4-carboxyisoxazolo[5,4-b]pyridine
EINECS	Contact for details

Quality Control

Our 5-Chloro-6-Cyclopropyl-3-Methyl-Isoxazolo[5,4-B]Pyridine-4-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.