1-Methyl-4-nitro-1H-pyrazol-3-amine CAS 20055-00-9
| CAS No. | 20055-00-9 |
| Molecular Formula | C4H6N4O2 |
| Molecular Weight | 142.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Methyl-4-nitro-1H-pyrazol-3-amine is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-Methyl-4-nitro-1H-pyrazol-3-amine (CAS 20055-00-9), a certified reference material (molecular formula C4H6N4O2, MW 142.12 g/mol) for analytical method development and quality control.
1-Methyl-4-nitro-1H-pyrazol-3-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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.) | 1962 |
| 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-3-nitro-1H-pyrazol-4-amine (CAS 39205-76-0)
Recommended Standards
- 1-Methyl-4-nitro-1h-pyrazol-5-amine (CAS 19868-85-0)
- 1,1,1-Trifluoro-3-methylbutan-2-ol (CAS 382-02-5)
- 1-Methyl-5-nitro-1H-pyrazol-4-amine (CAS 89607-16-9)
- 1,1,1-trifluoro-2-methylbutan-2-ol (CAS 507-54-0)
- H-Aad(OMe)-OH · HCl (CAS 147780-39-0)
- 2-bromo-1-methyl-1H-pyrrole (CAS 56454-27-4)
- Methyl (2S,4R)-4-(Dimethylamino)pyrrolidine-2-carboxylate Dihydrochloride (CAS 1609388-38-6)
- 1-(ChloroMethyl)-4-phenoxybenzene (CAS 4039-92-3)
- (3aS,8aS)-2,2-Dimethyl-4,4,8,8-tetraphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine 6-oxide (CAS 1817760-50-1)
- 3-Chloro-2-iodopyridine (CAS 77332-89-9)
- Methyl 2-3-6-tri-O-acetyl-α-D-glucopyranoside (CAS 18031-51-1)
- Glutaric Acid Dimethyl Ester (CAS 1119-40-0)
- 1-(2,2-Difluoroethyl)-4-iodo-5-methyl-1H-pyrazole (CAS 1354705-73-9)
- Liraglutide Impurity 17 TFA Salt (CAS CATO-C4X-199217)
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