2-Fluoro-1-(methylsulfonyl)-4-nitrobenzene CAS 252561-33-4
| CAS No. | 252561-33-4 |
| Molecular Formula | C7H6FNO4S |
| Molecular Weight | 219.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 2-Fluoro-1-(methylsulfonyl)-4-nitrobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.19 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.
2-Fluoro-1-(methylsulfonyl)-4-nitrobenzene (CAS 252561-33-4) is a high-purity analytical reference standard with the molecular formula C7H6FNO4S and a molecular weight of 219.19 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H6FNO4S |
| Molecular Weight | 219.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; 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.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- 1-Fluoro-3-methanesulfonyl-2-nitrobenzene (CAS 1022971-93-2)
- 2-Fluoro-5-sulfamoylbenzoic acid (CAS 112887-25-9)
- 2-Fluoro-4-(methylsulfonyl)nitrobenzene (CAS 1166756-97-3)
- 2-Fluoro-5-(6-fluoropyridin-3-yl)benzaldehyde (CAS 1206969-49-4)
- 1-Fluoro-2-(methylsulfonyl)-3-nitrobenzene (CAS 1210693-43-8)
- 3-Fluoro-6-(3-fluorophenyl)picolinaldehyde (CAS 1227581-54-5)
- 3-Fluoro-5-(4-fluorophenyl)picolinaldehyde (CAS 1227595-38-1)
- 4-Fluoro-2-sulfamoylbenzoic acid (CAS 1379305-97-1)
Recommended Standards
- 2-Amino-6-methoxy-4-oxo-4H-1-benzopyran-3-carboxaldehyde (CAS 68301-78-0)
- 2-fluoro-4-sulfamoylbenzoic acid (CAS 714968-42-0)
- 2-Acetamido-2-deoxy-D-galactono-1,4-lactone (CAS 28876-38-2)
- 2-Hydroxy-6-methoxy-quinoline-4-carboxylic acid (CAS 32431-29-1)
- 1-BROMO-3-FLUORO-6-METHOXYBENZENE 2-BROMO-4-FLUORO-1-METHOXYBENZENE 2-BROMO-4-FLUORO-METHOXYBENZENE 2-BROMO-4-FLUOROANISOLE 452-08-4 AS04143 ATTERCOP-CHM AT106665 BENZENE, 2-BROMO-4-FLUORO-1-METHOXY- OTAVA-BB 1787756 (CAS 452-08-4)
- (R)-4,4,4-Trifluoro-2-methylbutanoic acid (CAS 821775-25-1)
- Methyl 4-(2-phenoxyethoxy)thiophene-2-carboxylate (CAS 1708079-54-2)
- Ethyl 7-bromo-1-methyl-1,2,3-benzotriazole-5-carboxylate (CAS 1423037-30-2)
- 4-(1-Amino-3-(tert-butoxy)-1,3-dioxopropan-2-ylidene)-1,3-dithietane-2-carboxylic acid (CAS 955010-42-1)
- 3-(3-Hydroxypropyl)-3,4-dihydropyrimidin-4-one (CAS 1341983-10-5)
- 1,3-Dichloro-1,1,3,3-Tetrafluoro-2-Phenyl-Propan-2-Ol (CAS 1892-88-2)
- 2,2'-(1,3,5,7-Tetraoxo-5,7-dihydropyrrolo[3,4-f]isoindole-2,6(1H,3H)-diyl)dibenzoic acid (CAS 37881-74-6)
- n-(Pyrrolidin-3-yl)cyclopropanecarboxamide (CAS 1154977-71-5)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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