5-Ethyl-4-methyl-2-(1H-pyrrol-1-yl)thiophene-3-carboxylic acid CAS 952959-56-7
| CAS No. | 952959-56-7 |
| Molecular Formula | C12H13NO2S |
| Molecular Weight | 235.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Ethyl-4-methyl-2-(1H-pyrrol-1-yl)thiophene-3-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Ethyl-4-methyl-2-(1H-pyrrol-1-yl)thiophene-3-carboxylic acid (CAS 952959-56-7), molecular formula C12H13NO2S and molecular weight 235.30 g/mol, is a CATO reference standard with documented purity and traceability.
5-Ethyl-4-methyl-2-(1H-pyrrol-1-yl)thiophene-3-carboxylic acid (C12H13NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 5-Ethyl-4-methyl-2-(1H-pyrrol-1-yl)thiophene-3-carboxylic acid 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 | C12H13NO2S |
| Molecular Weight | 235.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- 5,8-Dimethoxy-4-methylquinoline-2-thiol (CAS 199281-87-3)
- Benzo[4,5]thieno[3,2-b]quinoline (CAS 243-68-5)
- 5-(1,3-Benzothiazol-2-yl)pentanoic acid (CAS 21224-20-4)
- Ethyl 1-(methylsulfonyl)piperidine-3-carboxylate (CAS 349625-89-4)
- N-methyl-2-(methylamino)-N-(2-phenylethyl)benzamide (CAS 173867-26-0)
- 1-(4-Fluorophenyl)-2-methylpropan-2-amine (CAS 1200-27-7)
- 3,4-Dichloro-N,N-dimethylaniline (CAS 58566-66-8)
- 2-(1-(P-tolyl)cyclopropyl)acetic acid (CAS 1225504-30-2)
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- 2-Bromodecahydro-2,8,4,6-(epibutane[1,2,3,4]tetrayl)naphthalene (CAS 30545-30-3)
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- tert-Butyl N-(2-azaspiro[3.3]heptan-6-yl)carbamate hydrochloride (CAS 1956355-97-7)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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