1-Methyl-3-nitro-1H-pyrazol-4-amine CAS 39205-76-0
| CAS No. | 39205-76-0 |
| Molecular Formula | C4H6N4O2 |
| Molecular Weight | 142.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methyl-3-nitro-1H-pyrazol-4-amine (C4H6N4O2) 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).
CATO supplies 1-Methyl-3-nitro-1H-pyrazol-4-amine (CAS 39205-76-0), a certified reference material (molecular formula C4H6N4O2, MW 142.12 g/mol) for analytical method development and quality control.
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 | C4H6N4O2 |
| Molecular Weight | 142.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 4 |
Related Methyl Standards
- 1-Ethyl-4-nitro-1H-1,2,3-triazole (CAS 107945-67-5)
- 1-Methyl-4-nitro-1H-imidazol-2-amine (CAS 1262282-20-1)
- 2-Methyl-5-nitro-2H-pyrazol-3-ylamine (CAS 132038-70-1)
- 4-Ethyl-3-nitro-4H-1,2,4-triazole (CAS 139339-81-4)
- 5-Methyl-3-nitro-1H-pyrazol-1-amine (CAS 151588-03-3)
- 3-Methyl-4-nitro-1H-pyrazol-1-amine (CAS 151588-04-4)
- (4-Nitro-1H-pyrazol-3-yl)methanamine (CAS 1936295-24-7)
- 1-Methyl-4-nitro-1H-pyrazol-3-amine (CAS 20055-00-9)
Recommended Standards
- 1,1,1-Trifluoro-3-methylbutan-2-ol (CAS 382-02-5)
- 1,1,1-trifluoro-2-methylbutan-2-ol (CAS 507-54-0)
- 1-Methyl-4-nitro-1h-pyrazol-5-amine (CAS 19868-85-0)
- 1-Methyl-5-nitro-1H-pyrazol-4-amine (CAS 89607-16-9)
- 2-(1-Tosyl-1H-indol-5-yl)acetic acid (CAS 2108834-38-2)
- 4-(tert-Butyl)-2,5-dimethylphenol (CAS 17696-37-6)
- Benzyl 2-(3-methylpyridin-2-yl)piperidine-1-carboxylate (CAS 1352511-15-9)
- Trans-2-butene-1,4-dicarboxylic acid diethyl ester (CAS 57042-08-7)
- Cholecalciferol impurity 22 (CAS CATO-C4X-158622)
- 1'-Benzyl-3H-spiro[benzofuran-2,4'-piperidine] (CAS 71916-71-7)
- 2-Bromobenzenesulfonyl fluoride (CAS 1373232-47-3)
- cis-1-Boc-4-Phenyl-piperidine-2-dicarboxylic acid (CAS 261777-36-0)
- (1S,3S)-3-(trifluoromethyl)-8-azaspiro[4.5]Decan-1-amine (CAS 2306253-16-5)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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