4-(4-Chlorophenyl)-3-methyl-1-(o-tolyl)-1H-pyrazol-5-amine CAS 400074-91-1
| CAS No. | 400074-91-1 |
| Molecular Formula | C17H16ClN3 |
| Molecular Weight | 297.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4-(4-Chlorophenyl)-3-methyl-1-(o-tolyl)-1H-pyrazol-5-amine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 297.78 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-(4-Chlorophenyl)-3-methyl-1-(o-tolyl)-1H-pyrazol-5-amine (CAS 400074-91-1) is a high-purity analytical reference standard with the molecular formula C17H16ClN3 and a molecular weight of 297.78 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(4-Chlorophenyl)-3-methyl-1-(o-tolyl)-1H-pyrazol-5-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H16ClN3 |
| Molecular Weight | 297.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
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- (2-Chlorophenyl)(4-((2,5-dihydro-1H-pyrrol-1-yl)methyl)phenyl)methanone (CAS 898764-37-9)
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Recommended Standards
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- 4-(Benzyloxy)-2-(chloromethyl)-3-methylquinoline (CAS 356761-10-9)
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- Melotinib (CAS 1206799-15-6)
- methyl 1H-pyrazolo[4,3-b]pyridine-7-carboxylate (CAS 1363381-17-2)
- 4-Chloro-5H-pyrido[4',3':4,5]pyrrolo[3,2-d]pyrimidine (CAS 1263285-23-9)
- tert-butyl 2-{[2-(tert-butoxy)-2-oxoethyl]dimethylsilyl}acetate (CAS 1909318-75-7)
- 2-Fluoro-6-(2-methoxyethoxy)pyridine (CAS 1251232-36-6)
- 3-Chloro-4-trifluoromethylphenol (CAS 37900-81-5)
- 4-(4-Chlorophenethyl)thiophene-3-carbaldehyde (CAS 1007387-40-7)
- tert-butyl 2-iodoimidazole-1-carboxylate (CAS 181220-75-7)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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