6-Chloro-5-(difluoromethyl)-2-fluoropyridine-3-sulfonamide CAS 1806930-08-4
| CAS No. | 1806930-08-4 |
| Molecular Formula | C6H4ClF3N2O2S |
| Molecular Weight | 260.62 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.
6-Chloro-5-(difluoromethyl)-2-fluoropyridine-3-sulfonamide (CAS 1806930-08-4) is a high-purity analytical reference standard with the molecular formula C6H4ClF3N2O2S and a molecular weight of 260.62 g/mol.
Structurally, 6-Chloro-5-(difluoromethyl)-2-fluoropyridine-3-sulfonamide (C6H4ClF3N2O2S) 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 260.62 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H4ClF3N2O2S |
| Molecular Weight | 260.62 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 DMSO, DMF, methanol |
| 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.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-2-(methylsulfonyl)-6-(trifluoromethyl)pyrimidine (CAS 119610-21-8)
- 2-Chloro-5-(trifluoromethyl)pyridine-3-sulfonamide (CAS 1208081-89-3)
- 2-Chloro-6-trifluoromethyl-pyridine-3-sulfonic acid amide (CAS 1208081-97-3)
- 6-Chloro-5-(trifluoromethyl)pyridine-3-sulfonamide (CAS 1228875-16-8)
- 3-Chloro-5-(trifluoromethyl)pyridine-2-sulfonamide (CAS 1249907-95-6)
- 1-(2-chloro-4,6-difluoro-phenyl)hexahydropyrimidine-2,4-dione (CAS 1549287-66-2)
- 4-Chloro-3-(trifluoromethyl)benzenesulfonic acid (CAS 1644-79-7)
- 5-Chloro-3-(2,2,2-trifluoroethoxy)thiophene-2-carboxylic acid (CAS 1774902-56-5)
Recommended Standards
- 6-Chloro-5-(difluoromethyl)-4-fluoropyridine-2-sulfonamide (CAS 1806930-01-7)
- 4-Chloro-5-(difluoromethyl)-6-fluoropyridine-2-sulfonamide (CAS 1806933-75-4)
- 2-(Chloromethyl)-6-cyano-3-(difluoromethyl)pyridine-5-acetic acid (CAS 1806848-88-3)
- 2-(Chloromethyl)-5-cyano-6-(difluoromethyl)pyridine-3-acetic acid (CAS 1806960-59-7)
- 1-(3-Bromoquinolin-5-yl)ethan-1-one (CAS 2007916-77-8)
- dexisometheptene mucate (CAS 1631134-71-8)
- 3,3-Diethylcyclobutane-1-carboxylic acid (CAS 66016-24-8)
- (S)-2-Amino-2-(3-bromo-4-chlorophenyl)ethanol (CAS 1272734-29-8)
- Ethyl 7-(4-chlorophenyl)-2,4-dimethylpyrrolo[1,2-a]pyrimidine-8-carboxylate (CAS 338406-13-6)
- 3-[(2,6-Dichlorobenzyl)oxy]benzoic acid (CAS 938273-34-8)
- 2-(Aminomethyl)-4-(difluoromethyl)-5-fluoro-3-iodopyridine (CAS 1806976-63-5)
- ethyl [1,2,4]triazolo[1,5-a]pyrimidine-7-carboxylate (CAS 941203-64-1)
- (2R,3S,5R)-5-(6-amino-2-chloro-purin-7-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 172792-37-9)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com