1-(2-methylphenyl)-3-phenyl-1H-pyrazol-5-amine CAS 956256-20-5
| CAS No. | 956256-20-5 |
| Molecular Formula | C16H15N3 |
| Molecular Weight | 249.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 1-(2-methylphenyl)-3-phenyl-1H-pyrazol-5-amine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 249.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
1-(2-methylphenyl)-3-phenyl-1H-pyrazol-5-amine (CAS 956256-20-5), molecular formula C16H15N3 and molecular weight 249.31 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C16H15N3 |
| Molecular Weight | 249.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related methylphenyl Standards
- 4-Methyl-2-[(2-methylphenyl)formamido]pentanoic acid (CAS 1397002-90-2)
- 3-(3-Methylphenyl)-1-phenyl-1h-pyrazol-5-amine (CAS 618092-64-1)
- 3-(4-Methylphenyl)-1-phenyl-1H-pyrazol-5-amine (CAS 90012-40-1)
- 3,5-Bis(2-methylphenyl)-1H-1,2,4-triazole (CAS 85681-49-8)
- 4-(2-Ethyl-6-methylphenyl)-2-hydroxy-5-methylmorpholin-3-one (CAS 61520-54-5)
- 2-{[5-(4-methylphenyl)-4h-1,2,4-triazol-3-yl]sulfanyl}acetic acid (CAS 132895-42-2)
- 2-[3-(3-methylphenyl)-5-sulfanyl-4h-1,2,4-triazol-4-yl]acetic acid (CAS 854137-72-7)
- 2-[3-(4-methylphenyl)-5-sulfanyl-4h-1,2,4-triazol-4-yl]acetic acid (CAS 851116-13-7)
Recommended Standards
- 1-(2-Methylbenzyl)-1H-indole-3-carbaldehyde (CAS 428495-34-5)
- 1-(3,5-Dimethyl-pyrazol-1-yl)-3-[(furan-2-ylmethyl)-amino]-propan-2-ol (CAS 351336-17-9)
- 1-(2-Methoxybenzyl)piperidine-4-carboxylic acid (CAS 897094-26-7)
- 1-(3-Methoxy-4-(morpholinomethyl)phenyl)ethan-1-one (CAS 655224-54-7)
- 6-Bromo-2,3-dihydrofuro[2,3-b]quinoline (CAS 158725-34-9)
- Tert-butyl n-methyl-N-[2-(piperidin-2-yl)ethyl]carbamate (CAS 917610-20-9)
- Tert-butyl n-(2,3-dihydroxy-2-methylpropyl)carbamate (CAS 1484637-05-9)
- 6-(Aminomethyl)-5-cyclopropoxypyridine-3-sulfonamide (CAS 1243369-56-3)
- Tamsulosin Impurity 56 (CAS CATO-C4X-118756)
- trans-Ethanesulfonic acid (4-aminocyclohexyl)-amide (CAS 787549-14-8)
- Benzyl ((1-(2-aminoacetyl)piperidin-2-yl)methyl)(ethyl)carbamate (CAS 1353962-76-1)
- (4-Fluoro-1-methyl-1H-pyrrol-2-yl)(m-tolyl)methanol (CAS 1443350-62-6)
- 2-(Benzo[d]thiazol-2-yl)malonaldehyde (CAS 40070-83-5)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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