3-Chloro-4,5-dimethoxybenzo[b]thiophene-2-carboxylic acid CAS 1171060-81-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1171060-81-3 |
| Molecular Formula | C11H9ClO4S |
| Molecular Weight | 272.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3-Chloro-4,5-dimethoxybenzo[b]thiophene-2-carboxylic acid (CAS 1171060-81-3) pharmaceutical standards reference standard. Molecular formula: C11H9ClO4S. Molecular weight: 272.70 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C11H9ClO4S |
| Molecular Weight | 272.70 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 |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- ethyl 2-(2-chloro-4-fluorobenzoyl)butanoate (CAS 1408992-02-8)
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Recommended Standards
- Momelotinib impurity 4 (CAS CATO-C4X-33774)
- 4-Fluoro-3-methanesulfonylbenzene-1-sulfonyl chloride (CAS 1188525-46-3)
- N-Nitroso Moxonidine Impurity 7 (CAS CATO-C4X-27817)
- Fmoc-D-His-OH (CAS 157355-79-8)
- 3-Bromo-5-ethynyl-1-trityl-1H-indazole (CAS 1403667-52-6)
- 5α-Androst-9(11)-ene-3,17-dione (CAS 15375-19-6)
- 2-(Benzylthio)-N-(4-phenylthiazol-2-yl)acetamide (CAS 329904-27-0)
- 4-hydroxy-6-(trifluoromethyl)pyridine-3-carbaldehyde (CAS 1196146-48-1)
- 2-Amino-5-(4-fluorobenzylideneamino)nitrobenzene (CAS 150812-22-9)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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 13829788188 / jacky.chen@cato-chem.com