1-Methyl-2-nitro-1H-Imidazole-5-carboxylic acid CAS 50700-55-5
| CAS No. | 50700-55-5 |
| Molecular Formula | C5H5N3O4 |
| Molecular Weight | 171.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Methyl-2-nitro-1H-Imidazole-5-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.
1-Methyl-2-nitro-1H-Imidazole-5-carboxylic acid (CAS 50700-55-5), molecular formula C5H5N3O4 and molecular weight 171.11 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carbohydrate-derived structure, an amide group, 1-Methyl-2-nitro-1H-Imidazole-5-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C5H5N3O4 |
| Molecular Weight | 171.11 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 |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 1-Methyl-4-nitro-1H-imidazole-2-carboxylic acid (CAS 109012-24-0)
- 2-Methyl-5-nitro-1H-imidazole-4-carboxylic acid (CAS 116273-51-9)
- 1-Methyl-5-nitro-1h-pyrazole-3-carboxylic acid (CAS 1171709-53-7)
- 1-(5-Nitro-2H-tetrazol-2-yl)propan-2-one (CAS 131394-19-9)
- Methyl 4-nitro-1H-pyrazole-5-carboxylate (CAS 1345513-95-2)
- 2-(5-Nitro-1H-imidazol-1-yl)acetic acid (CAS 14766-55-3)
- 1-Methyl-3-nitro-1h-pyrazole-5-carboxylic acid (CAS 177409-39-1)
- Methyl 3-nitro-1H-pyrazole-4-carboxylate (CAS 1798715-16-8)
Recommended Standards
- (3-Nitro-1h-pyrazol-1-yl)acetic acid (CAS 887408-81-3)
- 1-Methyl-3-nitro-1H-pyrazole-4-carboxylic acid (CAS 39205-68-0)
- 1-Methyl-2-nitro-1H-imidazole-4-carboxylic acid (CAS 1935419-90-1)
- 1-Methyl-4-nitro-1H-imidazole-5-carboxylic Acid (CAS 54828-05-6)
- N-Benzyl-N-methyl3-piperidinylmethanaminedihydrochloride (CAS 1211499-03-4)
- methyl 4-[(4-fluorophenyl)methyl]oxane-4-carboxylate (CAS 1803582-53-7)
- 1-(5-Methoxybenzo[d]oxazol-2-yl)ethanone (CAS 1500615-21-3)
- 6-Amino-4-hydroxynaphthalene-2-sulfonic acid hydrate (CAS 139123-65-2)
- 2-(3-Cyanobenzoyl)-4-methylpyridine (CAS 1187166-98-8)
- Oxybuprocaine Impurity 11 (CAS CATO-C4X-122711)
- Bicyclo[2.2.1]hept-5-ene-2,3-diyldimethanol (CAS 85-39-2)
- 1-(Benzofuran-2-yl)-2-cyclopropylethan-1-amine (CAS 1270562-53-2)
- 4-(5-Amino-3-methyl-1h-1,2,4-triazol-1-yl)benzonitrile (CAS 1247616-92-7)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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