2,3-Difluoro-1-methyl-4-nitrobenzene CAS 932373-72-3
| CAS No. | 932373-72-3 |
| Molecular Formula | C7H5F2NO2 |
| Molecular Weight | 173.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,3-Difluoro-1-methyl-4-nitrobenzene is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,3-Difluoro-1-methyl-4-nitrobenzene (CAS 932373-72-3), molecular formula C7H5F2NO2 and molecular weight 173.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 2,3-Difluoro-1-methyl-4-nitrobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 173.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 2,3-Difluoro-1-methyl-4-nitrobenzene 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 | C7H5F2NO2 |
| Molecular Weight | 173.12 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.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 2-(3,5-Difluoro-2-pyridyl)acetic acid (CAS 1000518-01-3)
- 3,5-Difluoro-n-hydroxybenzamide (CAS 1016775-31-7)
- 2,5-Difluoro-1-methyl-3-nitrobenzene (CAS 1093758-82-7)
- 1,5-Difluoro-2-methyl-3-nitrobenzene (CAS 1188412-98-7)
- 3,5-Difluoro-4-hydroxybenzamide (CAS 1235892-52-0)
- 2,2-Difluoro-2-(pyridin-3-yl)acetic acid (CAS 1247461-08-0)
- 2,6-Difluoro-N-hydroxybenzamide (CAS 125309-34-4)
- 2,5-Difluoro-4-hydroxybenzamide (CAS 1261738-52-6)
Recommended Standards
- 2-(Difluoromethoxy)nicotinaldehyde (CAS 2222104-51-8)
- 2,6-Difluoro-3-hydroxybenzamide (CAS 951122-37-5)
- 2-(2,6-Dioxomorpholino)acetic acid (CAS 33658-49-0)
- 2-Amino-3,6-difluorobenzoic acid (CAS 825654-54-4)
- N1-Benzyl-N2-(sec-butyl)oxalamide (CAS 351997-82-5)
- 3-Amino-6-chloro-2-iodopyridine (CAS 400777-06-2)
- (S)-3-((tert-Butoxycarbonyl)amino)-3-(3,4,5-trimethoxyphenyl)propanoic acid (CAS 1260605-11-5)
- 7-(2-Amino-1,3-thiazol-4-yl)-2,3,4,5-tetrahydro-1h-1-benzazepin-2-one (CAS 105344-32-9)
- 5,7-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 1815615-48-5)
- 2-Chloro-4-methanesulfonamidobenzoic acid (CAS 158579-73-8)
- 731773-12-9 1-Fluoro-4-(3-methylbut-3-en-1-yl)benzene DTXSID80641177 (CAS 731773-12-9)
- (S)-2-(4-fluoro-3-nitrophenyl)pyrrolidine (CAS 1213149-57-5)
- 3-Methylpicolinamide (CAS 937648-82-3)
- D-Pro37-Tirzepatide (CAS CATO-CPTD788902)
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