5-Ethylbenzo[b]thiophene CAS 17514-96-4
| CAS No. | 17514-96-4 |
| Molecular Formula | C10H10S |
| Molecular Weight | 162.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Ethylbenzo[b]thiophene (CAS 17514-96-4) is a high-purity analytical reference standard with the molecular formula C10H10S and a molecular weight of 162.25 g/mol.
The molecular framework of 5-Ethylbenzo[b]thiophene (C10H10S) is characterized by sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H10S |
| Molecular Weight | 162.25 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.) | 1962 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2,5-Dimethylbenzo[b]thiophene (CAS 16587-48-7)
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- 2,7-dimethyl-1-benzothiophene (CAS 16587-40-9)
- 1-((2-Aminoethyl)imino)tetrahydro-1H-1lambda6-thiophene 1-oxide (CAS 1936348-48-9)
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- 2-Methylacridine-9-carbaldehyde (CAS 70401-29-5)
- Ethyl 6,8-dichlorochroman-3-carboxylate (CAS 885271-53-4)
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- 4-(4-(Dimethylamino)styryl)-1-ethylpyridin-1-ium iodide (CAS 29519-52-6)
- 2-Chloropyridine-d4 (CAS 1001003-94-6)
- Methyl 3-amino-1H-pyrrolo[3,2-b]pyridine-6-carboxylate (CAS 1190315-96-8)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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