5-(Thiophen-2-ylsulfonyl)thiophene-2-sulfonamide CAS 63033-66-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 63033-66-9 |
| Molecular Formula | C8H7NO4S4 |
| Molecular Weight | 309.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(Thiophen-2-ylsulfonyl)thiophene-2-sulfonamide (CAS 63033-66-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H7NO4S4. Molecular weight: 309.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H7NO4S4 |
| Molecular Weight | 309.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 4 |
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Recommended Standards
- 4-Methyl-N-(2-(pyrimidin-2-ylthio)ethyl)benzenesulfonamide (CAS 329266-19-5)
- A-412997 dihydrochloride (CAS 630116-49-3)
- 4-Methyl-N-(2-(4-methylpiperazin-1-yl)phenyl)benzamide (CAS 400076-94-0)
- 2-((4-Ethyl-5-(pyrazin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 618427-20-6)
- [(3Z)-2-Oxo-1-phenyl-2,3-dihydro-1H-indol-3-ylidene]amino 2-methylbenzoate (CAS 478261-30-2)
- 122194-04-1 5-Azido-5-deoxy-2,3-O-(1-methylethylidene)-D-lyxonic Acid |A-Lactone 5-Azido-5-deoxy-2,3-O-isopropylidene-D-lyxono-1,4-lactone (CAS 122194-04-1)
- 4,8-Dimethyl-1-[(3-methylphenyl)methyl]-1,2-dihydroquinolin-2-one (CAS 343374-03-8)
- ((2R,3S,4R,5R)-5-(4-Amino-5-methyl-2-oxopyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate, ammonia salt (CAS 117309-80-5)
- 1-(1-Ethyl-1h-pyrazol-4-yl)cyclopentan-1-amine (CAS 1247217-44-2)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
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