N-Methyl-1-(4-methylphenyl)-4-nitro-1H-pyrazol-5-amine CAS 318238-12-9
| CAS No. | 318238-12-9 |
| Molecular Formula | C11H12N4O2 |
| Molecular Weight | 232.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N-Methyl-1-(4-methylphenyl)-4-nitro-1H-pyrazol-5-amine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
N-Methyl-1-(4-methylphenyl)-4-nitro-1H-pyrazol-5-amine (CAS 318238-12-9), molecular formula C11H12N4O2 and molecular weight 232.24 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-Methyl-1-(4-methylphenyl)-4-nitro-1H-pyrazol-5-amine (C11H12N4O2) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H12N4O2 |
| Molecular Weight | 232.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Recommended Standards
- n-Ethoxy-2-hydroxyquinoline-4-carboxamide (CAS 950040-97-8)
- N-methyl-1-(5-(4-nitrophenyl)furan-2-yl)methanamine (CAS 89260-59-3)
- N-cyclopropyl-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide (CAS 848903-91-3)
- Phenyl (3,4-dimethylisoxazol-5-yl)carbamate (CAS 81479-66-5)
- Ethyl (s)-2-amino-2-(4-chlorophenyl)acetate (CAS 1265788-23-5)
- 2-Bromo-5-(difluoromethyl)-4-iodonicotinaldehyde (CAS 1805923-94-7)
- 2-(Isopropyl(4-(methylthio)benzyl)amino)ethanol (CAS 1251099-47-4)
- 4-(3,5-Dibromophenyl)-2-phenyl-6-(4-(pyridin-3-yl)phenyl)pyrimidine (CAS 1776083-02-3)
- 4-Chloro-6-methyl-2-phenylpyrimidine (CAS 29509-92-0)
- Ethyl 2-amino-2-(2-chlorophenyl)acetate (CAS 500772-75-8)
- 1-Benzo[b]thien-3-yl-2-chloroethanone (CAS 26167-44-2)
- (1,3-Benzodioxol-5-ylmethyl)(3-methylbenzyl)amine (CAS 418777-13-6)
- Trans-3-fluoro-5,6-dihydroquinoline-5,6-diol (CAS 148324-56-5)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
Why CATO?
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