5-Chloro-3-ethoxythiophene-2-carboxylic acid CAS 1708401-61-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1708401-61-9 |
| Molecular Formula | C7H7ClO3S |
| Molecular Weight | 206.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Chloro-3-ethoxythiophene-2-carboxylic acid (CAS 1708401-61-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H7ClO3S. Molecular weight: 206.65 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO3S |
| Molecular Weight | 206.65 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.) | 1994 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- Methyl 4-chloro-3-methoxythiophene-2-carboxylate (CAS 1707727-82-9)
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- N-(3-Methylisoxazol-5-yl)acrylamide (CAS 303129-82-0)
- 7-Hydroxyflumequine (CAS 61293-22-9)
- 2-Phenylthieno[3,2-c]pyridin-4(5H)-one (CAS 690636-03-4)
- N-((1H-Pyrrol-2-yl)methylene)cyclohexanamine (CAS 274687-34-2)
- 4-Chloro-2-fluoro-5-nitroaniline (CAS 86988-02-5)
- 7-oxabicyclo[2.2.1]heptane-1-carbaldehyde (CAS 1235980-06-9)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
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