Methyl 5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate CAS 353269-02-0
| CAS No. | 353269-02-0 |
| Molecular Formula | C9H10O2S |
| Molecular Weight | 182.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate.
CATO supplies Methyl 5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate (CAS 353269-02-0), a certified reference material (molecular formula C9H10O2S, MW 182.24 g/mol) for analytical method development and quality control.
The molecular framework of Methyl 5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate (C9H10O2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C9H10O2S |
| Molecular Weight | 182.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- 1-[5-(4-Chlorobenzenesulfinyl)-1,2,3-thiadiazole-4-carbonyl]piperidine (CAS 306976-94-3)
- 1,1,2,2-Tetrakis(4-iodophenyl)ethene (CAS 299914-63-9)
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- 2-bromo-5,6-dimethoxy-3-nitropyridine (CAS 79491-48-8)
- Tungsten boride (WB) (CAS 12007-09-9)
- Des-Tyr10-Tirzepatide (CAS CATO-CPTD788680)
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