3-(4-Chlorophenyl)-5-(methylthio)-1-phenyl-1H-pyrazole CAS 80967-23-3
| CAS No. | 80967-23-3 |
| Molecular Formula | C16H13ClN2S |
| Molecular Weight | 300.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H13ClN2S, 3-(4-Chlorophenyl)-5-(methylthio)-1-phenyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 300.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-(4-Chlorophenyl)-5-(methylthio)-1-phenyl-1H-pyrazole (CAS 80967-23-3), molecular formula C16H13ClN2S and molecular weight 300.81 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), 3-(4-Chlorophenyl)-5-(methylthio)-1-phenyl-1H-pyrazole 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 | C16H13ClN2S |
| Molecular Weight | 300.81 g/mol |
| 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.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 1-(3-Chlorophenyl)-5-(p-tolyl)-1H-imidazole-2-thiol (CAS 1105188-77-9)
- 1-(4-Chlorophenyl)-5-(p-tolyl)-1h-imidazole-2-thiol (CAS 1105188-80-4)
- 3-(4-(4-Chlorophenyl)-5-methylthiazol-2-yl)aniline (CAS 1154912-16-9)
- 2-[(E)-[(4-Chlorophenyl)methylidene]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile (CAS 1346414-21-8)
- 1-Benzyl-5-(4-chlorophenyl)-1h-imidazole-2-thiol (CAS 790681-60-6)
- 2-((4-Chlorophenyl)thio)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 439095-84-8)
- 2-[(4-Chlorophenyl)methyl]-4-(methylsulfanyl)quinazoline (CAS 303149-37-3)
- 3-(4-Chlorophenyl)-4-[(4-methylphenyl)sulfanyl]-1H-pyrazole (CAS 318238-18-5)
Recommended Standards
- 4-Chloro-2-phenyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (CAS 35149-32-7)
- 5-(4-Chlorophenyl)-1-(2-methylphenyl)-1h-imidazole-2-thiol (CAS 554436-96-3)
- 5-(4-Chlorophenyl)-1-(p-tolyl)-1H-imidazole-2-thiol (CAS 793678-91-8)
- 2-((3-Chlorobenzyl)thio)-1-phenyl-1H-imidazole (CAS 478046-10-5)
- 4-Methyl-3-(pyridin-2-yl)-1h-pyrazol-5-amine (CAS 1312617-00-7)
- 2-(3-Aminopropyl)-6-(thiophen-2-yl)pyridazin-3(2H)-one (CAS 1181312-73-1)
- Formaldehyde, polymer with 3-methylphenol (CAS 25086-36-6)
- 1-(Trifluoromethyl)-1H-pyrazole-4-carboximidamide (CAS 1551552-78-3)
- 3-bromo-7-chloro-1,5-dimethyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 2095312-39-1)
- 3-Amino-1,3-diazaspiro[4.4]nonane-2,4-dione (CAS 16252-62-3)
- 6-Chloropyridazine-3-carbonitrile (CAS 35857-89-7)
- (all trans)-δ-Carotene (CAS 472-92-4)
- 3-(Piperidin-2-yl)-1H-indole (CAS 4695-73-2)
- Peptide 438 (CAS CATO-CPTD788438)
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