1-Methyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carboxamide CAS 61620-76-6
| CAS No. | 61620-76-6 |
| Molecular Formula | C9H8N4O4 |
| Molecular Weight | 236.18 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.
CATO supplies 1-Methyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carboxamide (CAS 61620-76-6), a certified reference material (molecular formula C9H8N4O4, MW 236.18 g/mol) for analytical method development and quality control.
1-Methyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carboxamide (C9H8N4O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C9H8N4O4 |
| Molecular Weight | 236.18 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 4 |
Related Methyl Standards
- 1-Ethyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 61619-62-3)
- 1-Ethyl-5-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 61619-63-4)
- N-(3-(5-Nitrofuran-2-yl)-1H-1,2,4-triazol-5-yl)acetamide (CAS 1704-66-1)
- 2-((5-Nitrofuran-2-yl)methoxy)aniline (CAS 88796-65-0)
- 1-(E)-(5-nitrofuran-2-yl)methylideneaminoimidazolidine-2,4-dione (CAS 178170-37-1)
- 3-(5-Nitrofuran-2-yl)-5,6-dihydrothiazolo[2,3-c][1,2,4]triazole (CAS 78205-33-1)
- (5-Nitrofuran-2-yl)methyl 3-chloropropanoate (CAS 13295-81-3)
- 3-(((5-Nitrofuran-2-yl)methylene)amino)-1,3-oxazinan-2-one (CAS 4341-15-5)
Recommended Standards
- 1,1'-Methylenebis(1H-pyrazole-4-carboxylic acid) (CAS 2610635-91-9)
- 2-((3-Nitroimidazo[1,2-a]pyridin-2-yl)amino)acetic acid (CAS 62194-95-0)
- 1-(4-Hydroxy-3-nitrophenyl)pyrrolidine-2,5-dione (CAS 48166-64-9)
- 2-(2-Hydroxyethyl)-5-nitroisoindoline-1,3-dione (CAS 55080-96-1)
- 3-(5-Methyl-1,3-dioxo-1,3,3a,4,7,7a-hexahydro-2H-4,7-methanoisoindol-2-yl)benzoic acid (CAS 1217623-45-4)
- 2-Cyanoacetamide (CAS 107-91-5)
- N-((1-Benzylpiperidin-2-yl)methyl)ethanamine (CAS 1342536-17-7)
- Methyl 6-bromo-5-formylpicolinate (CAS 1260671-31-5)
- N-(3-chlorophenyl)-2-((2-hydroxyethyl)amino)acetamide (CAS 215649-70-0)
- N-(4-(Aminomethyl)phenyl)cyclopropanecarboxamide hydrochloride (CAS 2126161-93-9)
- (4-Chlorophenyl)(3,5-dimethylphenyl)methanol (CAS 844683-41-6)
- 9H-pyrido[2,3-b]indole-6-carboxylic acid (CAS 94718-66-8)
- 2,5-Dichloro-3-(difluoromethyl)pyridine (CAS 71701-93-4)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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