4-Ethoxy-2,3-difluorobenzamide CAS 1017779-57-5
| CAS No. | 1017779-57-5 |
| Molecular Formula | C9H9F2NO2 |
| Molecular Weight | 201.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Ethoxy-2,3-difluorobenzamide (CAS 1017779-57-5), a certified reference material (molecular formula C9H9F2NO2, MW 201.17 g/mol) for analytical method development and quality control.
The molecular framework of 4-Ethoxy-2,3-difluorobenzamide (C9H9F2NO2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Ethoxy-2,3-difluorobenzamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H9F2NO2 |
| Molecular Weight | 201.17 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethoxy Standards
- 4-Ethoxy-3,5-difluorobenzamide (CAS 1017779-23-5)
- 2-Ethoxy-3,5-difluorobenzamide (CAS 1017779-74-6)
- 3-Ethoxy-2,4-difluorobenzamide (CAS 1017779-91-7)
- 3-Ethoxy-2,6-difluorobenzamide (CAS 1092461-26-1)
- 4-Ethoxy-2,6-difluorobenzamide (CAS 916483-57-3)
- 4-Ethoxy-5-fluoro-2,6-dioxohexahydropyrimidine-5-carbonitrile (CAS 65906-82-3)
- Methyl 1-ethoxy-4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrole-3-carboxylate (CAS 724742-80-7)
- 2-Ethoxy-4-nitro-1H-imidazole-5-carboxylic acid (CAS 195817-91-5)
Recommended Standards
- N,N-diethyl-2,3,3,3-tetrafluoropropanamide (CAS 392-63-2)
- Dimethyl (3-aminophenyl)phosphonate (CAS 89277-83-8)
- N-ethyl-2,2-difluorobenzo[d][1,3]dioxol-5-amine (CAS 1019553-29-7)
- Methyl 5,5-difluoro-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-2-carboxylate (CAS 1041430-65-2)
- 2-(2-(2H-chromen-3-yl)thiazol-4-yl)acetic acid (CAS 1291490-26-0)
- 2-Benzamido-3-(4-methoxyphenyl)acrylic acid (CAS 21542-84-7)
- 2-[(4-methoxyphenyl)methyl]pyridine (CAS 35854-45-6)
- N-(3,4-Difluorophenyl)-1-(4-fluorobenzenesulfonyl)pyrrolidine-2-carboxamide (CAS 317377-88-1)
- 5-Bromo-2-(hydroxymethyl)pyridine (CAS 88139-91-7)
- 4-(Furan-2-yl)-3-methylbenzoic acid (CAS 1261960-66-0)
- Zn(II) meso-Tetra (N-methyl-4-pyridyl) Porphine Tetrachloride (CAS 28850-44-4)
- 3-HEXYLUNDECAN-1-OL (CAS 51655-60-8)
- 5-Cyclopentyl-4-ethyl-4h-1,2,4-triazole-3-thiol (CAS 667412-81-9)
- Cycloaspeptide D (CAS 691363-62-9)
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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