5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde CAS 956010-59-6
| CAS No. | 956010-59-6 |
| Molecular Formula | C8H8OS |
| Molecular Weight | 152.21 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.
5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde (CAS 956010-59-6) is a high-purity analytical reference standard with the molecular formula C8H8OS and a molecular weight of 152.21 g/mol.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H8OS |
| Molecular Weight | 152.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1987 |
| Sulfur Atoms | 1 |
Related Dihydro Standards
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- 5,6-Dihydro-4H-cyclopenta[c]thiophene-1-carbaldehyde (CAS 1782777-52-9)
- 2,3-Dihydro-1-benzofuran-5-thiol (CAS 934347-73-6)
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Recommended Standards
- 4-Methylbenzothioic S-acid (CAS 50684-43-0)
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- 6,7-Dihydrobenzo[b]thiophen-5(4H)-one (CAS 58095-45-7)
- 4,6-Difluoro-1H-indazole-3-carboxylic acid (CAS 885523-11-5)
- 2-Methyl-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 1638761-00-8)
- 2-Butylbenzo[d]oxazol-6-amine (CAS 875850-00-3)
- 1-(4-Methyl-1H-indol-3-yl)butan-2-amine (CAS 28289-30-7)
- Ethyl 3-iodo-7-isopropyl-1H-indole-2-carboxylate (CAS 2099017-71-5)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperidin-4-one O-(p-tolylcarbamoyl) oxime (CAS 306976-36-3)
- methyl 4-(diphenylphosphoryl)benzoate (CAS 5032-55-3)
- (1S,2S,3R,5S)-3-amino-2,6,6-trimethylbicyclo[3.1.1]Heptan-2-ol (CAS 69363-09-3)
- Polygalaxanthone XI (CAS 857859-82-6)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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