Ethyl 4-hydroxy-5-oxo-1-(2-thienylmethyl)-2,5-dihydro-1H-pyrrole-3-carboxylate CAS 131436-78-7
| CAS No. | 131436-78-7 |
| Molecular Formula | C12H13NO4S |
| Molecular Weight | 267.30 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 Ethyl 4-hydroxy-5-oxo-1-(2-thienylmethyl)-2,5-dihydro-1H-pyrrole-3-carboxylate.
CATO supplies Ethyl 4-hydroxy-5-oxo-1-(2-thienylmethyl)-2,5-dihydro-1H-pyrrole-3-carboxylate (CAS 131436-78-7), a certified reference material (molecular formula C12H13NO4S, MW 267.30 g/mol) for analytical method development and quality control.
Ethyl 4-hydroxy-5-oxo-1-(2-thienylmethyl)-2,5-dihydro-1H-pyrrole-3-carboxylate (C12H13NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Ethyl 4-hydroxy-5-oxo-1-(2-thienylmethyl)-2,5-dihydro-1H-pyrrole-3-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 | C12H13NO4S |
| Molecular Weight | 267.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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- 5-hydroxy-2-(2-methylbenzyl)-3,4-dihydroisoquinolin-1(2h)-one (CAS 1105194-07-7)
- 5-Hydroxy-2-(3-methylbenzyl)-3,4-dihydroisoquinolin-1(2H)-one (CAS 1105196-17-5)
- (3'-Hydroxy-[1,1'-biphenyl]-2-yl)(pyrrolidin-3-yl)methanone (CAS 1261944-77-7)
- (4'-Hydroxy-[1,1'-biphenyl]-2-yl)(pyrrolidin-3-yl)methanone (CAS 1261947-62-9)
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Recommended Standards
- 2-({1,3-dimethyl-1h-thieno[2,3-c]pyrazol-5-yl}formamido)propanoic acid (CAS 1309001-73-7)
- (Z)-1,4-Dimethoxy-3-(4-methylpyridin-1-ium-1-yl)-1,4-dioxobut-2-ene-2-thiolate (CAS 1321889-48-8)
- (2S)-2-[3-(4-fluorophenyl)propanamido]-3-methylbutanoic acid (CAS 1308952-99-9)
- N,N-Diisopropyl-1,5-dihydrobenzo[e][1,3,2]dioxaphosphepin-3-amine (CAS 132741-50-5)
- 2-Cyano-5-(trifluoromethyl)phenylboronic acid (CAS 1375110-43-2)
- 7-benzyloxy-2,4-dichloro-6-methoxy-quinazoline (CAS 60771-18-8)
- 2-(6-Amino-2-(difluoromethyl)-5-methoxypyridin-3-yl)acetic acid (CAS 1805011-75-9)
- 4-(2-Methylphenyl)-1H-pyrazole (CAS 872366-13-7)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-4-((4-pentylphenyl)sulfonyl)-1,4-diazepane (CAS 646456-06-6)
- 6-Methyl-3-(2-oxopropyl)thieno[2,3-d]pyrimidin-4(3H)-one (CAS 819844-50-3)
- 5-Methyl-1H-pyrrolo[3,2-b]pyridin-2(3H)-one (CAS 56057-24-0)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
- Methyl 4-Bromophenylacetate (CAS 41841-16-1)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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