5-Nitroimidazole-4-carboxylic Acid CAS 40507-59-3
| CAS No. | 40507-59-3 |
| Molecular Formula | C4H3N3O4 |
| Molecular Weight | 157.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Nitroimidazole-4-carboxylic Acid (CAS 40507-59-3) is a high-purity analytical reference standard with the molecular formula C4H3N3O4 and a molecular weight of 157.08 g/mol.
5-Nitroimidazole-4-carboxylic Acid (C4H3N3O4) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C4H3N3O4 |
| Molecular Weight | 157.08 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.) | 1968 |
| Nitrogen Atoms | 3 |
Related Nitroimidazole Standards
- 1-Methyl-5-nitroimidazole-2-carbonitrile (CAS 1615-42-5)
- Methyl 5-Nitroimidazole-4-carboxylate (CAS 20271-20-9)
- 4-Nitroimidazole-5-carbonitrile (CAS 208510-03-6)
- Ethyl 5-Nitroimidazole-4-carboxylate (CAS 74478-95-8)
- 2-Methyl-5-nitroimidazole (CAS 88054-22-2)
- 5-Methyl-4-nitroimidazole (CAS 14003-66-8)
- 2-Nitroimidazole (CAS 527-73-1)
Recommended Standards
- 5-Nitrofuran-3-carboxylic acid (CAS 770-07-0)
- Isoxazole-3,5-dicarboxylicacid (CAS 89379-30-6)
- 5-Nitro-3-pyrazolecarboxylic acid (CAS 198348-89-9)
- Violuric Acid (CAS 87-39-8)
- Levonorgestrel EP Impurity I (CAS 20402-62-4)
- 5-Amino-3'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261972-01-3)
- Methyl 3-(2-chloro-4-methylphenyl)-5-nitrobenzoate (CAS 1820614-02-5)
- tert-Butyl 5-(3-aminopropyl)isoindoline-2-carboxylate (CAS 2720487-11-4)
- 5-((4-Methyl-1H-pyrazol-1-yl)methyl)furan-2-carboxylic acid (CAS 957509-85-2)
- 3-O-Benzyl Estradiol (CAS 14982-15-1)
- 4-Bromo-5-cyano-2-(difluoromethyl)-3-hydroxypyridine (CAS 1806841-23-5)
- 7-Bromo-4-chloro-1-methyl-1H-indazol-3-amine (CAS 1626335-83-8)
- N-(5-Oxo-2,5-dihydrofuran-2-yl)benzamide (CAS 62668-57-9)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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