

share
2,4-Difluoro-5-Hydroxybenzoic Acid CAS NO 91659-22-2
Unit Price:
CAS No.:91659-22-2
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
2,4-Difluoro-5-Hydroxybenzoic Acid is a multifunctional fluorinated aromatic building block of significant importance in advanced organic synthesis. Its unique structure, featuring both a carboxylic acid and a phenolic hydroxyl group on a difluorinated benzene ring, makes it a versatile intermediate for constructing complex molecules. This compound is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients.
Application
- Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for molecules requiring a difluorophenol moiety.
- Agrochemical Synthesis: Used in the creation of advanced herbicides and pesticides, where the fluorine atoms can enhance biological activity and metabolic stability.
- Liquid Crystal Materials: Serves as a precursor in the synthesis of fluorinated compounds for electronic display applications.
- Polymer Chemistry: Acts as a monomer or modifying agent for introducing fluorine and polar functional groups into specialty polymers.
- Organic Synthesis Building Block: Employed in cross-coupling reactions, esterifications, and ether formations to create complex, fluorinated aromatic structures.
- Chemical Research & Development: Utilized in academic and industrial labs for methodological studies and exploring new chemical spaces.
Basic Information
| Product Name | 2,4-Difluoro-5-Hydroxybenzoic Acid |
| CAS No. | 91659-22-2 |
| Molecular Formula | C7H4F2O3 |
| Molecular Weight | 174.10 g/mol |
| Synonyms | 5-Hydroxy-2,4-difluorobenzoic Acid; 2,4-Difluoro-5-hydroxybenzoic acid; Benzoic acid, 2,4-difluoro-5-hydroxy-; 2,4-Difluoro-5-hydroxy-benzoic acid; 91659-22-2; 5-Hydroxy-2,4-difluorobenzoic acid; 2,4-Difluoro-5-hydroxy benzoic acid |
| EINECS | Contact for details |
Quality Control
Our 2,4-Difluoro-5-Hydroxybenzoic Acid is produced and handled under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. 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 room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent degradation.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification (IR) | Conforms to structure |
| Purity (HPLC) | ≥ 98.0% |
| Melting Point | Contact for details |
| Loss on Drying | ≤ 0.5% |
| Heavy Metals | < 10 ppm |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


Methyl 2-Fluoro-3-Nitrobenzoate CAS NO 946126-94-9


2-(3,5-Bis(Trifluoromethyl)Phenyl)-2-Methyl Propanoic Acid CAS NO 289686-70-0


2,4,5-Trifluoro-3-Methoxybenzoic Acid CAS NO 112811-65-1


2-Nitro-4-(Trifluoromethyl)Phenylacetic Acid CAS NO 1735-91-7


2-Fluorobenzoic Acid CAS NO 445-29-4


Perfluorotetradecanoic Acid CAS NO 376-06-7


3-Bromo-4-Fluorobenzoic Acid CAS NO 1007-16-5


2-Bromo-4-Fluorobenzoic Acid CAS NO 1006-41-3


3-(Trifluoromethoxy)Benzoic Acid CAS NO 1014-81-9


3,4,5,6-Tetrafluorophthalic Acid Dimethyl Ester CAS NO 1024-59-5


4-Fluoro-n-Methoxy-n-Methylbenzamide CAS NO 1163-54-8


2,2-Bis(4-Carboxyphenyl)Hexafluoropropane CAS NO 1171-47-7


2,3,4,5-Tetrafluorobenzoic Acid CAS NO 1201-31-6


(E)-3-(4-Fluoro-Phenyl)-But-2-Enoic Acid CAS NO 1201-86-1


3-(2-Fluoro-Phenyl)-3-Oxo-Propionic Acid Ethyl Ester CAS NO 1479-24-9


4-[(3-Fluoro-4-(Octyloxy)-Phenyl]-Benzoic Acid CAS NO 1480-22-4


2-(Trifluoromethyl)-1,4-Benzenedicarboxylic Acid CAS NO 1483-47-2


3-(Aminosulfonyl)-4-Fluorobenzoic Acid CAS NO 1535-45-1


7-Fluoro-2-Methyl-1,2,3,4-Tetrahydro-Acridine-9-Carboxylic Acid CAS NO 1536-29-4


2,2,3,3,4,4,4-Heptafluoro-n-(1-Methyl-2-Phenylethyl)Butanamide CAS NO 1545-26-2
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.






