Ethyl 3,4-dimethyl-1H-pyrrole-2-carboxylate CAS 938-75-0
| CAS No. | 938-75-0 |
| Molecular Formula | C9H13NO2 |
| Molecular Weight | 167.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H13NO2, Ethyl 3,4-dimethyl-1H-pyrrole-2-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 167.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ethyl 3,4-dimethyl-1H-pyrrole-2-carboxylate (CAS 938-75-0), molecular formula C9H13NO2 and molecular weight 167.21 g/mol, is a CATO reference standard with documented purity and traceability.
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 3,4-dimethyl-1H-pyrrole-2-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 | C9H13NO2 |
| Molecular Weight | 167.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- Ethyl 3-(1H-pyrrol-2-yl)propanoate (CAS 55490-37-4)
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- Ethyl 2-cyanohex-2-enoate (CAS 996-95-2)
- Ethyl 4,5-Dimethyl-1H-pyrrole-2-carboxylate (CAS 2199-45-3)
- Methyl 5-hydroxy-2-methylisonicotinate (CAS 1803795-58-5)
- 5,7-Diiodo-2-methylquinolin-8-ol (CAS 7385-90-2)
- Methyl 5-((2-ethoxyphenyl)carbamoyl)-4-methyl-2-(4-methylbenzamido)thiophene-3-carboxylate (CAS 335408-73-6)
- n-(3-Bromophenyl)cyclobutanecarboxamide (CAS 748774-22-3)
- (2-Fluoro-4-(2-methyl-1H-imidazol-1-yl)phenyl)boronic acid (CAS 2225175-91-5)
- 5-(Benzyloxy)-7-bromobenzo[d]thiazole (CAS 1650547-09-3)
- 3-Oxospiro[3.5]nonane-1-carboxylic acid (CAS 2470437-26-2)
- Tert-butyl 6-fluoro-3-azabicyclo[3.1.0]Hexane-3-carboxylate (CAS 2384860-98-2)
- Lifitegrast Impurity 31 (CAS CATO-C4X-240931)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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