(2-carboxy-4,5-difluoro-phenyl)ammonium chloride CAS 20372-64-9
| CAS No. | 20372-64-9 |
| Molecular Formula | C7H5F2NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (2-carboxy-4,5-difluoro-phenyl)ammonium chloride 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.
(2-carboxy-4,5-difluoro-phenyl)ammonium chloride (CAS 20372-64-9) is a high-purity analytical reference standard with the molecular formula C7H5F2NO2HCl and a molecular weight of 209.58 g/mol.
(2-carboxy-4,5-difluoro-phenyl)ammonium chloride (C7H5F2NO2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5F2NO2 HCl |
| Molecular Weight | 209.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related carboxy Standards
- 4-Carboxy-3-nitrobenzylbromide (CAS 100466-27-1)
- 4-Carboxy-3-nitrobenzylamine (CAS 100466-28-2)
- 4-Carboxy-1H-pyrazole-1-acetic acid (CAS 1006494-68-3)
- 3-(5-Carboxy-2,4-dichlorobenzenesulfonyl)-3-azabicyclo[3.1.0]hexane-2-carboxylic acid (CAS 1007930-95-1)
- 5-{[(1-carboxy-2-methylbutyl)amino]sulfonyl}-2-chlorobenzoic acid (CAS 1008040-45-6)
- ((5-Carboxy-2-chlorophenyl)sulfonyl)proline (CAS 1008580-51-5)
- 5-{[1-carboxy-3-(methylsulfanyl)propyl]sulfamoyl}-2-methylbenzoic acid (CAS 1009419-81-1)
- 3-Carboxy-5-nitrobenzeneboronic acid (CAS 101084-81-5)
Recommended Standards
- 3-(4-(4-Chlorophenyl)piperazin-1-yl)-3-iminopropanenitrile (CAS 338794-92-6)
- 2-Chloro-3,4-difluorobenzamide (CAS 924626-67-5)
- N,N-Diethyl-2-bromo-5-methylbenzylamine (CAS 1414870-82-8)
- [2-(2,6-Dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]boronic acid (CAS 2193080-09-8)
- 4-Methylimidazole-d3 (CAS 1219805-95-4)
- 2-[(chloromethyl)sulfanyl]propane (CAS 18267-19-1)
- Ethyl 4-(2-methylbenzamido)benzoate (CAS 168080-73-7)
- tert-butyl 3-(trifluoroacetamido)piperidine-2-carboxylate (CAS 1955505-83-5)
- 4-Chloro-N-[(4-methoxyphenyl)methyl]-N-(propan-2-yl)benzene-1-sulfonamide (CAS 1881328-32-0)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com