N-ethyl-1-methyl-4-nitro-1H-pyrazole-5-carboxamide CAS 1245771-58-7
| CAS No. | 1245771-58-7 |
| Molecular Formula | C7H10N4O3 |
| Molecular Weight | 198.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-ethyl-1-methyl-4-nitro-1H-pyrazole-5-carboxamide (CAS 1245771-58-7), molecular formula C7H10N4O3 and molecular weight 198.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-ethyl-1-methyl-4-nitro-1H-pyrazole-5-carboxamide (C7H10N4O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures N-ethyl-1-methyl-4-nitro-1H-pyrazole-5-carboxamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H10N4O3 |
| Molecular Weight | 198.18 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.) | 1990 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 2,4-Dioxo-1-propyl-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid (CAS 1242282-11-6)
- 3-(5-Acetamido-4h-1,2,4-triazol-3-yl)propanoic acid (CAS 1248567-64-7)
- [1,2,3,4]tetrazolo[1,5-a]quinoline-4-carbaldehyde (CAS 121497-03-8)
- n-(2-Methoxyethyl)-5-nitropyrimidin-2-amine (CAS 1248798-45-9)
- Tert-butyl 5-(hydroxymethyl)-7-oxa-2-azaspiro[3.5]Nonane-2-carboxylate (CAS 1357353-23-1)
- 2-{[(4-fluorophenyl)methyl]sulfanyl}-5-phenylpyrimidine (CAS 344282-17-3)
- (R)-1-(3-chloro-4-methylphenyl)butan-1-amine (CAS 1213664-76-6)
- Lubiprostone Impurity 16 (CAS CATO-C4X-113616)
- N-(2-aminophenyl)-1H-indazole-3-carboxamide (CAS 677701-93-8)
- 5-(Methoxymethyl)-2-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-4-yl]pyrazolo[1,5-a]pyrimidin-7-ol (CAS 1007074-04-5)
- 1-(1H-benzimidazol-2-ylmethyl)piperidine-4-carboxylic acid dihydrochlorid+ (CAS 1158579-15-7)
- 2-Fluoro-4-methoxypyridine-3-carboxaldehyde (CAS 451459-05-5)
- (S)-4-((1,4,7,10-Tetrakis(2-(tert-butoxy)-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-2-yl)methyl)benzoic acid (CAS 1713269-98-7)
- D-[Ser]8-Liraglutide (CAS CATO-C4X-199238)
Why CATO?
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