3-(Trifluoromethoxy)benzenesulfonamide CAS 503179-70-2
| CAS No. | 503179-70-2 |
| Molecular Formula | C7H6F3NO3S |
| Molecular Weight | 241.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(Trifluoromethoxy)benzenesulfonamide is closely related to an amide group, a sulfone 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.
3-(Trifluoromethoxy)benzenesulfonamide (CAS 503179-70-2) is a high-purity analytical reference standard with the molecular formula C7H6F3NO3S and a molecular weight of 241.19 g/mol.
3-(Trifluoromethoxy)benzenesulfonamide (C7H6F3NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. It is notably hygroscopic, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 3-(Trifluoromethoxy)benzenesulfonamide 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 | C7H6F3NO3S |
| Molecular Weight | 241.19 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Trifluoromethoxy Standards
- 4-(Trifluoromethoxy)benzenesulfonamide (CAS 1513-45-7)
- 2-(Trifluoromethoxy)benzenesulfonamide (CAS 37526-59-3)
- 1-[4-(Trifluoromethoxy)phenyl]cyclobutanecarbonitrile (CAS 151157-62-9)
- 1-[2-(trifluoromethoxy)benzyl]-1H-pyrrole (CAS 256238-71-8)
- 6-(Trifluoromethoxy)quinoline-2-carbaldehyde (CAS 904369-14-8)
- Bis-(2-trifluoromethoxy-ethyl)-amine (CAS 960365-26-8)
- 4-(Trifluoromethoxy)phenyl carbonochloridate (CAS 1449205-27-9)
- 1-(Trifluoromethoxy)-2-[2-(trifluoromethoxy)ethoxy]ethane (CAS 329710-73-8)
Recommended Standards
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- 2-((Phenylselanyl)methyl)tetrahydrofuran (CAS 65539-72-2)
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- Mono(4-carboxybutyl) Phthalate-d4 (CAS 1794737-39-5)
- 3-Bromo-2,6-dimethoxybenzoyl chloride (CAS 84225-91-2)
- 3-Bromo-1-phenylpropane-1,2-dione (CAS 29634-62-6)
- N-(1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-6-yl)acetamide (CAS 943311-44-2)
- 3-(4-Chloro-3,5-dimethyl-1H-pyrazol-1-yl)-2-methylpropanoic acid (CAS 890597-37-2)
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