5-Chloro-1-methyl-3-phenyl-4-((p-tolylthio)methyl)-1H-pyrazole CAS 318234-04-7
| CAS No. | 318234-04-7 |
| Molecular Formula | C18H17ClN2S |
| Molecular Weight | 328.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-1-methyl-3-phenyl-4-((p-tolylthio)methyl)-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Chloro-1-methyl-3-phenyl-4-((p-tolylthio)methyl)-1H-pyrazole (CAS 318234-04-7), a certified reference material (molecular formula C18H17ClN2S, MW 328.86 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H17ClN2S, 5-Chloro-1-methyl-3-phenyl-4-((p-tolylthio)methyl)-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 328.86 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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-Chloro-1-methyl-3-phenyl-4-((p-tolylthio)methyl)-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 | C18H17ClN2S |
| Molecular Weight | 328.86 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- Methyl 3-chloro-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylate (CAS 175202-12-7)
- 5-Chloro-1-methyl-4-{[(3-methylphenyl)sulfanyl]methyl}-3-phenyl-1H-pyrazole (CAS 318234-15-0)
- 6-Chloro-3-(4-isopropylphenyl)-2-methylquinazoline-4(3H)-thione (CAS 823195-68-2)
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- 4-chloro-5-phenyl-2-(thiophen-3-yl)thieno[2,3-d]pyrimidine (CAS 1156376-84-9)
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Recommended Standards
- 5-(4-Chlorophenyl)-1-[2-(propan-2-yl)phenyl]-1h-imidazole-2-thiol (CAS 793678-95-2)
- 2-{[(3-chlorophenyl)methyl]sulfanyl}-5H,6H,7H,8H,9H-cyclohepta[b]pyridine-3-carbonitrile (CAS 445384-15-6)
- 5-tert-Butyl-n'-(2-chloroacetyl)-4,5,6,7-tetrahydro-1-benzothiophene-2-carbohydrazide (CAS 794582-32-4)
- 6-(Tert-butyl)-2-(2-chloroacetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 549515-99-3)
- 4-[(2-Aminophenyl)sulfanyl]-3-nitrobenzenecarbaldehyde O-methyloxime (CAS 860786-01-2)
- 7-Hydroxy-5-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 13698-23-2)
- N-(2-(piperidin-4-yl)benzyl)cyclopropanamine (CAS 1273659-91-8)
- Dibenzo[b,d]thiophen-2-amine (CAS 7428-91-3)
- 1-(2,5-Dimethylphenyl)piperazine (CAS 1013-25-8)
- 3-Bromo-2-hydroxy-6-(trifluoromethyl)pyridine (CAS 1214391-40-8)
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- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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