ethyl 2-chloro-4H-thieno[3,2-b]pyrrole-5-carboxylate CAS 332099-38-4
| CAS No. | 332099-38-4 |
| Molecular Formula | C9H14ClNO2S |
| Molecular Weight | 235.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H14ClNO2S, ethyl 2-chloro-4H-thieno[3,2-b]pyrrole-5-carboxylate contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.73 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).
CATO supplies ethyl 2-chloro-4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 332099-38-4), a certified reference material (molecular formula C9H14ClNO2S, MW 235.73 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), ethyl 2-chloro-4H-thieno[3,2-b]pyrrole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H14ClNO2S |
| Molecular Weight | 235.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related ethyl Standards
- methyl 2-chloro-1,3-benzothiazole-7-carboxylate (CAS 1196152-62-1)
- 2-Chloro-6-(m-tolylthio)pyridine (CAS 1242241-04-8)
- 3-Chloro-4-(phenylsulfanyl)aniline (CAS 32631-26-8)
- 5-Chloro-2-(phenylsulfanyl)aniline (CAS 4235-20-5)
- 7-chloro-3-methyl-thieno[2,3-c]pyridine-4-carboxylic acid (CAS 2306262-10-0)
- ethyl 2-chloro-6H-thieno[2,3-b]pyrrole-5-carboxylate (CAS 332099-01-1)
- methyl 2-chloro-1,3-benzothiazole-5-carboxylate (CAS 90225-03-9)
- 3-Chloro-N,N-diethylquinoxalin-2-amine (CAS 100116-89-0)
Recommended Standards
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- methyl 7-chlorothieno[3,2-b]pyridine-2-carboxylate (CAS 875339-21-2)
- 4-(Benzylsulfanyl)-2-chloropyridine (CAS 71506-79-1)
- methyl 7-chlorothieno[3,2-b]pyridine-6-carboxylate (CAS 96516-52-8)
- Benzyltrichlorosilane (CAS 770-10-5)
- 2-(4-Iodo-1H-pyrazol-1-yl)acetaldehyde (CAS 1172074-04-2)
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- (1-((3-Isopropyl-1,2,4-oxadiazol-5-yl)methyl)piperidin-3-yl)methanamine (CAS 1285382-91-3)
- Clindamycin Impurity 66 (CAS CATO-C4X-134166)
- 3,3-dimethylazetidine-2-carboxylic acid hydrochloride (CAS 2059936-62-6)
- Nepafenac Impurity 12 (CAS 98190-48-8)
- 4-(chloromethyl)-2-isopropoxypyridine hydrochloride (CAS 1357946-36-1)
- n-(2-Methoxybenzyl)-2,4,4-trimethylpentan-2-amine (CAS 892584-04-2)
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