5,5'-Diethynyl-2,2'-bithiophene CAS 139896-68-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 139896-68-7 |
| Molecular Formula | C12H6S2 |
| Molecular Weight | 214.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,5'-Diethynyl-2,2'-bithiophene (CAS 139896-68-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H6S2. Molecular weight: 214.31 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H6S2 |
| Molecular Weight | 214.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Sulfur Atoms | 2 |
Related Diethynyl Standards
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- 4,4'-Diethynyl-2,2'-bipyridine (CAS 133810-44-3)
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- 3,8-Diethynyl-1,10-phenanthroline (CAS 640297-84-3)
Recommended Standards
- 1-Methyl-4-(3-phenylprop-2-yn-1-yl)piperazine (CAS 13808-26-9)
- 3-[2-(1-Pyrrolidinyl)ethyl]-1H-indole (CAS 14008-96-9)
- 5-(1-Ethylpyrrolidin-2-yl)-1H-indole (CAS 1355234-25-1)
- Pyridine-2-sulfonyl fluoride hydrochloride (CAS 1373232-90-6)
- Pemafibrate-D4 (CAS CATO-CCAD303582)
- 2-(Cyclohexylmethyl)-5-(methylthio)phenol (CAS 1243389-02-7)
- 1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid (CAS 932702-13-1)
- 6-(2,4-Dichlorophenyl)-3-(piperidin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1706455-35-7)
- 5519-42-6 U620SU1FNR 3,4,5-Trimethylpyrazole UNII-U620SU1FNR (CAS 5519-42-6)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
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