1,4-Bis(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine CAS 321391-75-7
| CAS No. | 321391-75-7 |
| Molecular Formula | C16H13Cl2N3 |
| Molecular Weight | 318.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,4-Bis(4-chlorophenyl)-3-methyl-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.
CATO supplies 1,4-Bis(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine (CAS 321391-75-7), a certified reference material (molecular formula C16H13Cl2N3, MW 318.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H13Cl2N3, 1,4-Bis(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 318.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C16H13Cl2N3 |
| Molecular Weight | 318.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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 Bis Standards
- 1-(3-Chlorophenyl)-4-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine (CAS 321385-92-6)
- N-(3-chlorophenyl)-4-(2-chloropyridin-4-yl)-1,3,5-triazin-2-amine (CAS 652153-37-2)
- 2-(1-(4-Chlorophenyl)-1-phenylethoxy)-N,N-dimethylpropan-1-amine (CAS 5668-06-4)
- 5-((4-(4-Chlorophenyl)piperazin-1-yl)methyl)-2-methylpyrimidin-4-amine (CAS 189744-35-2)
- 2-(3-(2-Chlorophenyl)propyl)-6-methoxy-N-methylbenzamide (CAS 1171923-12-8)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-1-(piperidin-1-yl)propan-1-one (CAS 853312-23-9)
- 4-(4-Chlorophenyl)-1,7lambda6-dithia-4-azaspiro[4.4]nonane-3,7,7-trione (CAS 879641-88-0)
- {1-[(4-Chlorophenyl)sulfonyl]piperidin-4-yl}acetic acid (CAS 1142209-57-1)
Recommended Standards
- 1-(5-(Benzyloxy)-2,4-dichlorophenyl)-1H-pyrrole (CAS 338966-96-4)
- 2-(2,4-Dichlorophenyl)-4-(3-methylphenyl)-4-oxobutanenitrile (CAS 344281-28-3)
- 2-(Acetamido)benzothiazole-6-boronic acid pinacol ester, 97% (CAS 885069-14-7)
- 1-(2,4-Dichlorophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine (CAS 956961-77-6)
- 6-Propyl-4,5,6,7-tetrahydro-1,3-benzothiazol-2-amine (CAS 136467-31-7)
- 3-{4-[3-(3-ethyl-1,2-oxazol-5-yl)propoxy]-3,5-dimethylphenyl}-5-(trifluoromethyl)-1,2,4-oxadiazole (CAS 153168-30-0)
- (4AR,6S,7R,8S,8aR)-8-(allyloxy)-6-(ethylthio)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-7-yl 4-oxopentanoate (CAS 1186583-16-3)
- (S)-3-Iodo-1-methylpiperidine (CAS 1354018-12-4)
- cis-2-carbamoylcyclopropanecarboxylic acid (CAS 15982-33-9)
- 2-(2-(Dimethylamino)ethoxy)acetic acid hydrochloride (CAS 98278-27-4)
- (1S)-2,2'-Bis(methoxymethoxy)[1,1'-binaphthalene]-3,3'-diol (CAS 326793-16-2)
- 3,5-dimethyl-1,3,4,7-tetraazatricyclo[7.4.0.0²,⁶]trideca-2(6),4-diene (CAS 1375472-50-6)
- 1-(tert-Butoxycarbonyl)-1H-pyrazole-4-carboxylic acid (CAS 288083-62-5)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
Why CATO?
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