2,6-Difluoro-4-methoxybenzenesulfonyl fluoride CAS 2137682-45-0
| CAS No. | 2137682-45-0 |
| Molecular Formula | C7H5F3O3S |
| Molecular Weight | 226.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,6-Difluoro-4-methoxybenzenesulfonyl fluoride (CAS 2137682-45-0), molecular formula C7H5F3O3S and molecular weight 226.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,6-Difluoro-4-methoxybenzenesulfonyl fluoride (C7H5F3O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine 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 226.17 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2,6-Difluoro-4-methoxybenzenesulfonyl fluoride 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 | C7H5F3O3S |
| Molecular Weight | 226.17 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; Hygroscopic; reseal immediately after opening; 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.) | 1997 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 4-Chloro-N-(4-(2-(1,3-dioxoisoindolin-2-yl)ethyl)thiazol-2-yl)butanamide (CAS 866050-85-3)
- Ethyl 2-(2-chloroacetamido)-4-(3,4-dimethylphenyl)thiophene-3-carboxylate (CAS 314244-95-6)
- 7-bromo-1,3-benzothiazole-2-thiol (CAS 908355-83-9)
- (2S,3R,4R,5S,6R)-6-(hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol (CAS 7282-79-3)
- 2-(6-Amino-[3,4'-bipyridin]-5-yl)acetonitrile (CAS 1227587-44-1)
- 3-Vinylcyclobutan-1-ol (CAS 82363-68-6)
- (3E)-3-{[(2-chloro-4-fluorophenyl)methoxy]imino}-2-[4-(3,3-dimethyl-2-oxoazetidin-1-yl)phenyl]propanenitrile (CAS 303986-02-9)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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