

share
3-(2-Fluoro-Phenyl)-5-Methyl-Isoxazole-4-Carboxylic Acid CAS NO 1736-20-5
Unit Price:
CAS No.:1736-20-5
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
3-(2-Fluoro-Phenyl)-5-Methyl-Isoxazole-4-Carboxylic Acid is a high-value fluorinated isoxazole derivative, a key heterocyclic building block prized for its role in advanced organic synthesis. This compound is essential for research and development in the pharmaceutical and agrochemical sectors, where its unique structure enables the creation of novel active ingredients. It is primarily sought by fine chemical manufacturers and R&D laboratories engaged in developing new therapeutic agents and crop protection solutions.
Application
- Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting the central nervous system (CNS) and anti-inflammatory pathways.
- Agrochemical Synthesis: Serves as a key building block for developing advanced herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
- Chemical Research & Development: Used in academic and industrial R&D for exploring new chemical entities and reaction methodologies involving fluorinated heterocycles.
- Material Science Applications: Potential use in the development of specialty polymers and advanced materials requiring specific fluorinated components.
- Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the production of complex molecules on a commercial scale.
Basic Information
| Product Name | 3-(2-Fluoro-Phenyl)-5-Methyl-Isoxazole-4-Carboxylic Acid |
| CAS No. | 1736-20-5 |
| Molecular Formula | C11H8FNO3 |
| Molecular Weight | 221.19 g/mol |
| Synonyms | 3-(2-Fluorophenyl)-5-methyl-4-isoxazolecarboxylic acid; 5-Methyl-3-(2-fluorophenyl)isoxazole-4-carboxylic acid; 4-Isoxazolecarboxylic acid, 3-(2-fluorophenyl)-5-methyl-; 2-Fluoro-5-methylisoxazole-4-carboxylic acid phenyl derivative; FPMICA; 1736-20-5; 3-(o-Fluorophenyl)-5-methylisoxazole-4-carboxylic acid |
| EINECS | Contact for details |
Quality Control
Our 3-(2-Fluoro-Phenyl)-5-Methyl-Isoxazole-4-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the stringent requirements of our global clientele. Certificates of Analysis (COA) detailing all specifications are provided with every shipment and are available upon request.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification (IR) | Conforms to structure |
| Purity (HPLC) | ≥ 98.0% |
| Loss on Drying | ≤ 1.0% |
| Residue on Ignition | ≤ 0.1% |
| Heavy Metals | ≤ 20 ppm |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


1-(2,5-Dimethylphenyl)-4,4,4-Trifluorobutane-1,3-Dione CAS NO 94856-19-6


2,4-Difluorophenyl) 1-(1H, 1-Yl-1,2,4 Triazole-2,3-Epoxy Propane Methane Sulfona CAS NO 86386-77-8


Trifluoroacetic Acid CAS NO 76-05-1


(Chlorodifluoromethoxy)Benzene CAS NO 770-11-6


1,3,5-Tris(Trifluoromethyl)Benzene CAS NO 729-81-7


Pyridine Hydrofluoride CAS NO 62778-11-4


Trifluoropropene CAS NO 677-21-4


Liotfp CAS NO 521065-36-1


Perfluoro(Methyldecalin) CAS NO 51294-16-7


Polyoxytrifluoro(Trifluoromethyl)-1,2-Ethanediyl, .Alpha.-(1-Carboxy-1,2,2,2-Tetrafluoroethyl)-.Omega.-Tetrafluoro(Trifluoromethyl)Ethoxy- CAS NO 51798-33-5


Octafluoroadiponitrile CAS NO 376-53-4


Heptafluorobutyrylamidine CAS NO 375-19-9


Hexafluoroglutaric Anhydride CAS NO 376-68-1


4-Fluorobenzoyl Chloride CAS NO 403-43-0


Ethylene Glycol Bis(1,1,2,2-Tetrafluoroethyl) Ether CAS NO 358-39-4


Dimethyl Difluoromalonate CAS NO 379-95-3


2-Fluoro-1H-Imidazole Hydrochloride CAS NO 42309-92-2


2-Fluorobenzoyl Chloride CAS NO 393-52-2


4-Chloro-4'-Fluorobutyrophenone CAS NO 3874-54-2


1H,1H,9H-Hexadecafluoro-1-Nonanol CAS NO 376-18-1
Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






