2,3-Dihydrobenzo[b]thiophene CAS 4565-32-6
| CAS No. | 4565-32-6 |
| Molecular Formula | C8H8S |
| Molecular Weight | 136.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2,3-Dihydrobenzo[b]thiophene (CAS 4565-32-6), a certified reference material (molecular formula C8H8S, MW 136.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H8S, 2,3-Dihydrobenzo[b]thiophene contains sulfur-containing functionality, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 136.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H8S |
| Molecular Weight | 136.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Dihydrobenzo Standards
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- 6,7-Dihydrobenzo[c][1,2,5]oxadiazol-4(5H)-one (CAS 142328-06-1)
- 2-Methyl-6,7-dihydrobenzo[d]oxazol-5(4H)-one (CAS 1196147-31-5)
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- 2,3-Dihydrobenzo[b]thiophen-6-amine (CAS 54928-74-4)
Recommended Standards
- 2-(2-Methoxyethoxy)ethanethiol (CAS 88778-21-6)
- 2,5-Divinylthiophene (CAS 27839-46-9)
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- 2-[(2-methoxyethyl)sulfanyl]ethan-1-ol (CAS 25756-33-6)
- 3-Acetyl-2(5H)-furanone (CAS 80436-91-5)
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- N,4-Dimethyl-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzenesulfonamide (CAS 2377607-04-8)
- 4-(3-Chloropropyl)tetrahydro-2h-pyran (CAS 1251103-04-4)
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- Posaconazole Impurity 62 (CAS CATO-C4X-120862)
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- 1,5-Dimethyl-4-phenyl-3-(tosylmethyl)imidazolidin-2-one (CAS 691873-17-3)
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