1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-yl)ethanone CAS 199684-11-2
| CAS No. | 199684-11-2 |
| Molecular Formula | C9H12N2O4 |
| Molecular Weight | 212.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-yl)ethanone (CAS 199684-11-2), molecular formula C9H12N2O4 and molecular weight 212.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-yl)ethanone (C9H12N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 212.20 g/mol, it falls into the medium-molecular-weight range. 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).
As a certified reference material (CRM), 1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-yl)ethanone 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 | C9H12N2O4 |
| Molecular Weight | 212.20 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Nitrogen Atoms | 2 |
Related Ethoxy Standards
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Recommended Standards
- 1-(4-Hydroxy-2-oxobutyl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS 94426-69-4)
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- 1-(3,6-Dihydroxy-2,4-dimethoxyphenyl)ethan-1-one (CAS 6962-57-8)
- 1-(tert-Butoxycarbonyl)-1H-imidazole-5-carboxylic acid (CAS 774239-52-0)
- 2-Chloro-4-methylquinolin-7-ol (CAS 860297-02-5)
- 4-Chloro-3-iodo-1H-indazol-7-amine (CAS 1000343-04-3)
- N-methyl-N-[(3R)-piperidin-3-yl]acetamide hydrochloride (CAS 2007909-72-8)
- 2-(Methylsulfonyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine (CAS 321655-56-5)
- (2RS,4SR)-4-(Benzyloxy)-2-fluorocyclohexan-1-one relative stereochemistry (CAS 1638612-74-4)
- Oseltamivir Impurity 246 (CAS CATO-C4X-1720246)
- ALYSSIN (CAS 646-23-1)
- N-(2-methoxyethyl)piperidine-3-carboxamide (CAS 1016522-09-0)
- N'-hydroxy-3-oxo-3-(pyrrolidin-1-yl)propanimidamide (CAS 479080-07-4)
- Antiarrhythmic peptide (cattle atrium) (CAS 81771-37-1)
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