Ethyl 2-chloro-5-(chlorosulfonyl)thiophene-3-carboxylate CAS 1245643-45-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1245643-45-1 |
| Molecular Formula | C7H6Cl2O4S2 |
| Molecular Weight | 289.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-chloro-5-(chlorosulfonyl)thiophene-3-carboxylate (CAS 1245643-45-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H6Cl2O4S2. Molecular weight: 289.16 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H6Cl2O4S2 |
| Molecular Weight | 289.16 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; 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.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 4-Chloro-3-methanesulfonylbenzene-1-sulfonyl chloride (CAS 1354954-48-5)
- methyl 3-chloro-5-(chlorosulfonyl)-4-methylthiophene-2-carboxylate (CAS 1803589-56-1)
- 2-chloro-N-[3-chloro-2-(morpholin-4-yl)phenyl]acetamide (CAS 1803593-00-1)
- 2-Chloro-5-methanesulfonylbenzene-1-sulfonyl chloride (CAS 90084-62-1)
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Recommended Standards
- (4-bromo-3-fluoro-phenyl)methyl methanesulfonate (CAS 1240286-88-7)
- 3-methylbenzene-1,2-disulfonyl dichloride (CAS 116465-26-0)
- (4-(tert-butyl)-2-iodophenyl)methanamine (CAS 1369932-72-8)
- 4-(Chloromethyl)-2-nitrophenol (CAS 6694-75-3)
- Andrographolide (CAS 5508-58-7)
- (2-Chloro-6-(difluoromethyl)-3-iodopyridin-4-yl)methanol (CAS 1805387-79-4)
- 3-(1-Benzyl-1,2,3,6-tetrahydropyridin-4-yl)-2-methyl-1H-indole (CAS 775526-30-2)
- 2-((2-Chlorothiazol-5-yl)methoxy)benzoic acid (CAS 886360-91-4)
- 3-(Cyclopropylmethoxy)isonicotinic acid (CAS 1504949-03-4)
- Calcitonin N-Terminal Flanking Peptide (human) (CAS 118277-01-3)
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