5-(2-Ethylhexyl)-2,2'-bithiophene CAS 956897-76-0
| CAS No. | 956897-76-0 |
| Molecular Formula | C16H22S2 |
| Molecular Weight | 278.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(2-Ethylhexyl)-2,2'-bithiophene is closely related to sulfur-containing functionality, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(2-Ethylhexyl)-2,2'-bithiophene (CAS 956897-76-0), molecular formula C16H22S2 and molecular weight 278.48 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(2-Ethylhexyl)-2,2'-bithiophene (C16H22S2) contains sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 278.48 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H22S2 |
| Molecular Weight | 278.48 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 2 |
Related Ethylhexyl Standards
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Recommended Standards
- 4-Chloro-6-iodo-1H-indazole (CAS 887568-21-0)
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- 5-Chloro-3-iodo-1H-indazole (CAS 351456-45-6)
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- 1-Ethyl-2-methyl-5-(methylsulfonyl)-1H-benzo[d]imidazole (CAS 21355-85-1)
- (3S,4aS,8aS)-2-((2R,3R)-3-Amino-2-hydroxy-4-(phenylthio)butyl)decahydroisoquinoline-3-carboxylic acid, >98% (CAS 1221793-34-5)
- 1-(4-Chlorobenzyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 53409-45-3)
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- 2-((6-(Pyridin-3-yl)pyridazin-3-yl)oxy)ethan-1-amine (CAS 1283108-35-9)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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