2-Chloro-4-fluoro-5-methylbenzene-1-sulfonamide CAS 1208077-19-3
| CAS No. | 1208077-19-3 |
| Molecular Formula | C7H7ClFNO2S |
| Molecular Weight | 223.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Chloro-4-fluoro-5-methylbenzene-1-sulfonamide 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.
2-Chloro-4-fluoro-5-methylbenzene-1-sulfonamide (CAS 1208077-19-3) is a high-purity analytical reference standard with the molecular formula C7H7ClFNO2S and a molecular weight of 223.65 g/mol.
Structurally, 2-Chloro-4-fluoro-5-methylbenzene-1-sulfonamide (C7H7ClFNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 223.65 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C7H7ClFNO2S |
| Molecular Weight | 223.65 g/mol |
| 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.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- N-(2-chloro-4-fluorophenyl)methanesulfonamide (CAS 1001026-51-2)
- (4-Chloro-2-fluorophenyl)methanesulfonamide (CAS 1001026-53-4)
- 4-Chloro-2-fluoro-n-methylbenzenesulfonamide (CAS 1089634-90-1)
- n-(4-Chloro-3-fluorophenyl)methanesulfonamide (CAS 1097107-44-2)
- 2-Chloro-4-fluoro-n-methylbenzenesulfonamide (CAS 1098391-40-2)
- 3-Chloro-2-fluoro-n-methylbenzenesulfonamide (CAS 1099029-88-5)
- 5-Chloro-4-fluoro-2-methylbenzenesulfonamide (CAS 1242339-14-5)
- (4-chloro-3-fluorophenyl)methanesulfonamide (CAS 1249978-53-7)
Recommended Standards
- (S)-Chloromethyl 2-((methoxycarbonyl)amino)-3-methylbutanoate (CAS 1332329-90-4)
- 5-(Chloromethyl)-2-fluorobenzenesulfonamide (CAS 1379371-14-8)
- (5-Chloro-2-fluorophenyl)methanesulfonamide (CAS 1394042-52-4)
- 5-Chloro-4-fluoro-2-methanesulfonylaniline (CAS 1465676-51-0)
- 4-Bromo-2-phenylbenzimidazole (CAS 1770-31-6)
- 6-Chloro-N-methyl-N-(tetrahydro-2H-pyran-4-ylmethyl)-2-pyrazinamine (CAS 1219981-20-0)
- (R)-2-((5-(3-Methyl-1H-indazol-5-yl)pyridin-3-yl)amino)-2-phenylacetamide (CAS 1613639-20-5)
- 4-(Furan-3-yl)picolinic acid (CAS 914637-22-2)
- 7-bromo-3-iodoimidazo[1,2-a]pyridine (CAS 1246184-55-3)
- 2-Ethyl-N-(thiazol-5-ylmethyl)hexan-1-amine (CAS 1343280-96-5)
- 3-(4-Bromo-2,5-dimethoxyphenyl)propanoic acid (CAS 52428-11-2)
- 5-(2,5-Dimethylfuran-3-yl)-1h-pyrazole-3-carboxylic acid (CAS 1347231-69-9)
- 2-Methyl-3-phenoxyquinoline (CAS 92855-35-1)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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