3-Chloro-4-fluoro-5-hydroxybenzoic acid CAS 950525-96-9
| CAS No. | 950525-96-9 |
| Molecular Formula | C7H4ClFO3 |
| Molecular Weight | 190.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-Chloro-4-fluoro-5-hydroxybenzoic acid (CAS 950525-96-9), a certified reference material (molecular formula C7H4ClFO3, MW 190.56 g/mol) for analytical method development and quality control.
3-Chloro-4-fluoro-5-hydroxybenzoic acid (C7H4ClFO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 3-Chloro-4-fluoro-5-hydroxybenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H4ClFO3 |
| Molecular Weight | 190.56 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 2-Chloro-5-fluoro-4-methyl-3-nitropyridine (CAS 1003711-51-0)
- 5-Chloro-4-fluoro-2-nitroaniline (CAS 104222-34-6)
- 3-Chloro-4-fluoro-2-nitroaniline (CAS 1059081-23-0)
- 5-Chloro-3-fluoro-2-nitroaniline (CAS 1352457-23-8)
- 2-Chloro-5-fluoro-4-hydroxybenzoic acid (CAS 1394954-06-3)
- 2-Chloro-4-fluoro-5-nitroaniline (CAS 139626-20-3)
- Methyl 2-Chloro-5-fluoropyrimidine-4-carboxylate (CAS 1404364-32-4)
- 4-Chloro-2-fluoro-6-nitroaniline (CAS 1482558-25-7)
Recommended Standards
- 3-Chloro-4-fluoro-2-hydroxybenzoic acid (CAS 860296-14-6)
- 3-Chloro-5-fluoro-2-hydroxy-benzoic acid (CAS 4068-62-6)
- 3-Chloro-2-fluoro-4-hydroxybenzoic acid (CAS 860296-15-7)
- 3-Chloro-5-fluoro-4-hydroxybenzoic acid (CAS 455-57-2)
- 5-Chloro-4-methoxythiophene-3-carboxylic acid (CAS 133659-14-0)
- (2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(5-nitro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3,4-diyl diacetate (CAS 194474-73-2)
- 2-Chloro-4-fluoroquinoline (CAS 893620-30-9)
- 5,10,15,20-Tetra(pyridin-2-yl)porphyrin (CAS 40904-90-3)
- 3,5-Diethynylpyrazin-2-amine (CAS 1588440-99-6)
- 2-(6-Methylhept-5-en-2-yl)benzofuran-3(2H)-one (CAS 646522-88-5)
- 2-(4-amino-1H-pyrazol-1-yl)-N-[2-(dimethylamino)ethyl]acetamide (CAS 1156075-72-7)
- Methyl 3-(N-(2,4-dimethoxyphenyl)sulfamoyl)-4-fluorobenzo[b]thiophene-2-carboxylate (CAS 932354-43-3)
- 3-Methyl-2-(methylthio)-3H-imidazo[4,5-c]pyridine (CAS 7321-99-5)
- Semaglutide Impurity 142 (CAS CATO-C4X-2226142)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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