5-[(3-Chlorophenyl)sulfanyl]-1-methyl-3-phenyl-1H-pyrazole-4-carbonitrile CAS 321998-36-1
| CAS No. | 321998-36-1 |
| Molecular Formula | C17H12ClN3S |
| Molecular Weight | 325.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-[(3-Chlorophenyl)sulfanyl]-1-methyl-3-phenyl-1H-pyrazole-4-carbonitrile (CAS 321998-36-1), molecular formula C17H12ClN3S and molecular weight 325.82 g/mol, is a CATO reference standard with documented purity and traceability.
5-[(3-Chlorophenyl)sulfanyl]-1-methyl-3-phenyl-1H-pyrazole-4-carbonitrile (C17H12ClN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 5-[(3-Chlorophenyl)sulfanyl]-1-methyl-3-phenyl-1H-pyrazole-4-carbonitrile 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 | C17H12ClN3S |
| Molecular Weight | 325.82 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Methionine-methyl-d3 (CAS 284665-20-9)
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- 4,6-Dichloro-N-isobutyl-1,3,5-triazin-2-amine (CAS 27409-86-5)
- (5-Amino-2-chlorophenyl)boronic acid (CAS 958646-69-0)
- 6-Hydroxy-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methyldihydropyrimidine-2,4(1H,3H)-dione (CAS 68509-78-4)
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- Furan-2-yl pivalate (CAS 100921-72-0)
- 2-Ethoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile (CAS 154014-47-8)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
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