2-Chloro-5-(trifluoromethoxy)benzenesulfonamide CAS 77797-67-2
| CAS No. | 77797-67-2 |
| Molecular Formula | C7H5ClF3NO3S |
| Molecular Weight | 275.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Chloro-5-(trifluoromethoxy)benzenesulfonamide (CAS 77797-67-2) is a high-purity analytical reference standard with the molecular formula C7H5ClF3NO3S and a molecular weight of 275.63 g/mol.
Structurally, 2-Chloro-5-(trifluoromethoxy)benzenesulfonamide (C7H5ClF3NO3S) 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 275.63 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-Chloro-5-(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 | C7H5ClF3NO3S |
| Molecular Weight | 275.63 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.) | 1979 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-3-(2-fluorophenyl)-5-(trifluoromethyl)pyridine (CAS 1214334-02-7)
- 3-Chloro-2-(3-fluorophenyl)-6-(trifluoromethyl)pyridine (CAS 1214340-11-0)
- 2-Chloro-3-(4-fluorophenyl)-5-(trifluoromethyl)pyridine (CAS 1214340-21-2)
- 2-Chloro-3-(4-fluorophenyl)-6-(trifluoromethyl)pyridine (CAS 1214353-54-4)
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Recommended Standards
- 2-Chloro-3-(phenylselanyl)tetrahydro-2H-pyran (CAS 89113-96-2)
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- 6-(2,2,2-trifluoroethoxy)pyridine-3-sulfonyl chloride (CAS 1432680-11-9)
- 3-Chloro-2-(2-fluorophenyl)-5-(trifluoromethyl)pyridine (CAS 387827-70-5)
- 6,9-Dioxaspiro[4.5]Decane-10-carboxylic acid (CAS 1706541-20-9)
- 1-Bromo-2-(trifluoromethyl)-3-(3,3,3-trifluoropropoxy)benzene 1779132-44-3 (CAS 1779132-44-3)
- 1-Imino-1λ6-thiomorpholine 1-oxide dihydrochloride (CAS 2503207-99-4)
- (4-Fluorophenyl)(imino)(trifluoromethyl)-lambda6-sulfanone (CAS 109139-20-0)
- (3'-Chloro-[1,1'-biphenyl]-3-yl)methanol (CAS 773872-37-0)
- 3-(Piperazin-1-yl)-1H-indazole (CAS 131633-88-0)
- 1-(4-Chlorophenyl)-N-methyl-2-(pyrrolidin-1-yl)ethan-1-aminehydrochloride (CAS 2007908-52-1)
- (trans,trans)-4-(4-Ethoxy-2,3-difluorophenyl)-4'-pentyl-1,1'-bi(cyclohexane) (CAS 124728-81-0)
- tert-Butyl N-(3-ethynyloxetan-3-yl)carbamate (CAS 1678527-98-4)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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