5-(Pyridin-2-yl)thiophene-2-sulfonamide CAS 190659-63-3
| CAS No. | 190659-63-3 |
| Molecular Formula | C9H8N2O2S2 |
| Molecular Weight | 240.30 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.
5-(Pyridin-2-yl)thiophene-2-sulfonamide (CAS 190659-63-3), molecular formula C9H8N2O2S2 and molecular weight 240.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(Pyridin-2-yl)thiophene-2-sulfonamide (C9H8N2O2S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H8N2O2S2 |
| Molecular Weight | 240.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Pyridin Standards
- 4-(2-(Pyridin-2-yl)ethyl)thiomorpholine 1,1-dioxide (CAS 477847-06-6)
- 2,5-Di(pyridin-4-yl)-1,3,4-thiadiazole (CAS 15311-09-8)
- 2,5-Di(pyridin-3-yl)-1,3,4-thiadiazole (CAS 15362-52-4)
- 2-(Pyridin-2-yl)-4H-benzo[e][1,3]thiazin-4-one (CAS 99420-15-2)
- 2-[5-(pyridin-2-yl)-1,3,4-thiadiazol-2-yl]pyridine (CAS 2726-92-3)
- 4-Phenyl-2-(pyridin-4-yl)pentan-1-amine (CAS 1306605-43-5)
- 4-Phenyl-2-(pyridin-2-yl)pentan-1-amine (CAS 1306606-05-2)
- 1,6-Di(pyridin-3-yl)hexane (CAS 94801-54-4)
Recommended Standards
- 2-Amino-N-(2-phenylethyl)benzamide (CAS 19050-62-5)
- 3-[1-(ethoxymethyl)-3,5-dimethyl-1H-pyrazol-4-yl]-2-methylpropanoic acid (CAS 1909308-76-4)
- Ethyl 4-benzylbenzoate (CAS 18908-74-2)
- 8-benzyl-2-oxo-8-azabicyclo[3.2.1]octane-6-carbonitrile (CAS 1909317-57-2)
- 3-(4-Amino-1H-pyrazol-1-yl)propanoic acid hydrochloride (CAS 1431966-50-5)
- (4-Amino-2-fluorophenyl)(piperidin-1-yl)methanone (CAS 1248184-59-9)
- 3-(2-Nitrophenoxy)benzoic acid (CAS 27237-20-3)
- Amitriptyline-13C3 Hydrochloride (CAS 1329837-86-6)
- 2-Chloro-6-(difluoromethyl)-4-iodopyridin-3-ol (CAS 1807074-75-4)
- 2-Acetyl-3,6-difluorobenzoic acid (CAS 319457-34-6)
- 25260-60-0 D1358 cis-1,4-Diacetoxy-2-butene cis-2-Butene-1,4-diol Diacetate (CAS 25260-60-0)
- 1-(Quinolin-2-yl)propan-2-amine (CAS 68764-62-5)
- H-γ-Glu-4-Abz-OH (CAS 2643-70-1)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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