4-(4-Chlorophenyl)-3-methyl-1-phenyl-1H-pyrazol-5-amine CAS 321385-90-4
| CAS No. | 321385-90-4 |
| Molecular Formula | C16H14ClN3 |
| Molecular Weight | 283.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Chlorophenyl)-3-methyl-1-phenyl-1H-pyrazol-5-amine (C16H14ClN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-phenyl-1H-pyrazol-5-amine (CAS 321385-90-4), molecular formula C16H14ClN3 and molecular weight 283.76 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(4-Chlorophenyl)-3-methyl-1-phenyl-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.
Physical & Chemical Properties
| Molecular Formula | C16H14ClN3 |
| Molecular Weight | 283.76 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
- 1-benzyl-3-(3-chlorophenyl)-1H-pyrazol-5-amine (CAS 1154569-19-3)
- 1-(4-Chlorophenyl)-4-p-tolyl-1H-pyrazol-5-amine (CAS 1202029-96-6)
- 1-(3-Chlorophenyl)-3-(m-tolyl)-1H-pyrazol-5-amine (CAS 618098-32-1)
- 1-(3-Chlorophenyl)-3-(o-tolyl)-1H-pyrazol-5-amine (CAS 618098-33-2)
- 1-(3-Chlorophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine (CAS 618098-27-4)
- 1-(3-Chlorophenyl)-4-(2-methylphenyl)-1H-pyrazol-5-amine (CAS 324009-02-1)
- 1-(3-Chlorophenyl)-4-(m-tolyl)-1H-pyrazol-5-amine (CAS 242797-15-5)
- 1-(3-Chlorophenyl)-4-(p-tolyl)-1H-pyrazol-5-amine (CAS 242797-19-9)
Recommended Standards
- 4-(4-Chlorophenyl)-1-(p-tolyl)-1H-pyrazol-5-amine (CAS 895029-27-3)
- 4-(4-Chloroquinazolin-2-yl)-N,N-dimethylaniline (CAS 79916-53-3)
- 3-Chloro-7-(diallylamino)quinoline-8-carbonitrile (CAS 88347-07-3)
- 4-Chloro-6-methyl-5-(naphthalen-1-ylmethyl)pyrimidin-2-amine (CAS 500157-97-1)
- 3-(Pyrimidin-5-yl)-1H-indazol-5-amine (CAS 1175871-66-5)
- 1,3-Dichlorobenzo[c]thiophene (CAS 136132-54-2)
- Ethyl 4,5-dibromothiophene-2-carboxylate (CAS 62224-25-3)
- 2,2'-Bis[(R-1,1'-binaphthyl-2,2'-dimethyl)phosphino]diethylamine (CAS 791630-00-7)
- 3-(5-Chloro-4-fluoropyridin-3-yl)propan-1-amine (CAS 1393538-95-8)
- N-Methyl-N-(2-(3-propoxyphenoxy)ethyl)propan-2-amine (CAS 190258-12-9)
- n-Isobutyl-3-isopropyl-1,2,4-oxadiazol-5-amine (CAS 1249792-53-7)
- 24(R/S),25-epoxycholesterol-d6 (CAS 1246302-86-2)
- 2-Ethyl-2-methylpent-4-enoic acid (CAS 1542386-59-3)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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