2-Ethoxy-4-nitro-1H-imidazole-5-carboxylic acid CAS 195817-91-5
| CAS No. | 195817-91-5 |
| Molecular Formula | C6H7N3O5 |
| Molecular Weight | 201.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Ethoxy-4-nitro-1H-imidazole-5-carboxylic acid is closely related to a carbohydrate-derived structure, an amide group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Ethoxy-4-nitro-1H-imidazole-5-carboxylic acid (CAS 195817-91-5), a certified reference material (molecular formula C6H7N3O5, MW 201.14 g/mol) for analytical method development and quality control.
2-Ethoxy-4-nitro-1H-imidazole-5-carboxylic acid (C6H7N3O5) contains a carbohydrate-derived structure, an amide group. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H7N3O5 |
| Molecular Weight | 201.14 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, water |
| 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.) | 2012 |
| Nitrogen Atoms | 3 |
Related Ethoxy Standards
- 3-Ethoxy-4-nitro-1H-pyrazole-5-carboxylic acid (CAS 400878-02-6)
- 4-Ethoxy-5-fluoro-2,6-dioxohexahydropyrimidine-5-carbonitrile (CAS 65906-82-3)
- 4-Ethoxy-3,5-difluorobenzamide (CAS 1017779-23-5)
- 4-Ethoxy-2,3-difluorobenzamide (CAS 1017779-57-5)
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Recommended Standards
- Methyl o-(trifluoromethyl)homoserinate (CAS 1510827-48-1)
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- 2-Amino-6,6,6-trifluoro-5-hydroxyhexanoic acid (CAS 1218376-66-9)
- 2,2,2-trifluoro-N-[2-(2-hydroxyethoxy)ethyl]acetamide (CAS 302331-18-6)
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- NVP-BEP 800 (CAS 847559-80-2)
- n-Methyl-1-phenyl-1h-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 103984-27-6)
- 2-((3-Chlorobenzyl)oxy)-3,4-dimethylbenzaldehyde (CAS 1427021-14-4)
- (1R,4R)-rel-4-Amino-2-cyclopentene-1-carboxylic Acid Methyl Ester Hydrochloride (CAS 77745-26-7)
- Peptide Impurity 28 (CAS 1350456-64-2)
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