3,5-Difluoro-4-methoxybenzamide CAS 343-79-3
| CAS No. | 343-79-3 |
| Molecular Formula | C8H7F2NO2 |
| Molecular Weight | 187.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Difluoro-4-methoxybenzamide (C8H7F2NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. 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.
3,5-Difluoro-4-methoxybenzamide (CAS 343-79-3) is a high-purity analytical reference standard with the molecular formula C8H7F2NO2 and a molecular weight of 187.14 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3,5-Difluoro-4-methoxybenzamide 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 | C8H7F2NO2 |
| Molecular Weight | 187.14 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.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 1,4-Difluoro-2-(2-nitroethyl)benzene (CAS 1017082-18-6)
- 2,2-Difluoro-N-methylbenzo[d][1,3]dioxol-5-amine (CAS 1021036-78-1)
- 2,5-Difluoro-4-methoxybenzamide (CAS 1022618-89-8)
- 2,2-Difluoro-2-(6-methylpyridin-2-yl)acetic acid (CAS 1215353-13-1)
- 2,2-Difluoro-2-(5-methylpyridin-2-yl)acetic acid (CAS 1215421-88-7)
- 2,2-Difluoro-2-(3-methylpyridin-2-yl)acetic acid (CAS 1215474-10-4)
- 2,6-Difluoro-4-methoxybenzamide (CAS 125369-57-5)
- 3,6-Difluoro-2-methoxybenzamide (CAS 1261439-98-8)
Recommended Standards
- 3,5-Difluoro-4-(methylamino)benzoic acid (CAS 500575-82-6)
- 4-(Aminomethyl)-2,2-difluoro-1,3-benzodioxole (CAS 531508-46-0)
- 3,5-Difluoro-2-methoxybenzamide (CAS 874804-09-8)
- 4,5-Difluoro-2-methoxybenzamide (CAS 425702-23-4)
- 5-Methyl-5,7-diazaspiro[2.5]Octan-6-one (CAS 1394306-54-7)
- 3-(methoxy-d3)benzoic acid (CAS 96739-37-6)
- 6-Methoxy-2-(4-methoxyphenyl)-3-(m-tolyloxy)benzo[b]thiophene 1-oxide (CAS 477762-68-8)
- 6,6-Difluorospiro[3.3]heptan-2-amine (CAS 1354952-13-8)
- PX-866 (CAS 502632-66-8)
- 4-(4-Chlorophenyl)-6-hydroxy-2-(pyridin-2-yl)pyrimidine-5-carbonitrile (CAS 1797296-66-2)
- Implitapide (CAS 177469-96-4)
- 5-Bromo-2-hydroxy-4-(2-methoxyethoxy)benzaldehyde (CAS 1352487-48-9)
- (+)-[12S,13r]-epoxy-cis-9-octadecenoicacidmethylester (CAS 2733-91-7)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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