Diethyl 2,2'-(thieno[3,2-b]thiophene-2,5-diyl)bis(thiophene-3-carboxylate) CAS 1343457-55-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1343457-55-5 |
| Molecular Formula | C20H16O4S4 |
| Molecular Weight | 448.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2,2'-(thieno[3,2-b]thiophene-2,5-diyl)bis(thiophene-3-carboxylate) (CAS 1343457-55-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H16O4S4. Molecular weight: 448.60 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H16O4S4 |
| Molecular Weight | 448.60 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Sulfur Atoms | 4 |
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Recommended Standards
- 6-(2H-Benzo[e][1,3]oxazin-3(4H)-yl)-N2-(3-(triethoxysilyl)propyl)-1,3,5-triazine-2,4-diamine (CAS CATO-CIM-105738)
- LY2857785 (CAS 1619903-54-6)
- Latanoprost Impurity 26 (CAS CATO-C4X-194126)
- 1-(Methoxycarbonyl)cyclopentane-1-carboxylic acid (CAS 365218-99-1)
- 5-Acetyl-6-methyl-3,4-dihydropyrimidin-2(1H)-one (CAS 136231-40-8)
- N-Benzyl-2-imino-10-methyl-5-oxo-1-propyl-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 510762-16-0)
- Ethyl4-hydroxy-1,5-naphthyridine-3-carboxylate (CAS 13801-51-9)
- 1-((6-Bromo-2-(4-fluorophenyl)imidazo[1,2-a]pyridin-3-yl)methyl)piperidine-4-carboxylic acid (CAS 728916-77-6)
- 2,7-Dimethyl-1H-purin-6(7H)-one (CAS 1713477-43-0)
- Vialox Peptide(Pentapeptide-3) diacetate (CAS 725232-44-0)
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