5-Chloro-4-(((2-chlorophenyl)thio)methyl)-1-methyl-3-((p-tolylthio)methyl)-1H-pyrazole CAS 318248-71-4
| CAS No. | 318248-71-4 |
| Molecular Formula | C19H18Cl2N2S2 |
| Molecular Weight | 409.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Chloro-4-(((2-chlorophenyl)thio)methyl)-1-methyl-3-((p-tolylthio)methyl)-1H-pyrazole.
5-Chloro-4-(((2-chlorophenyl)thio)methyl)-1-methyl-3-((p-tolylthio)methyl)-1H-pyrazole (CAS 318248-71-4), molecular formula C19H18Cl2N2S2 and molecular weight 409.40 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H18Cl2N2S2, 5-Chloro-4-(((2-chlorophenyl)thio)methyl)-1-methyl-3-((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 409.40 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-Chloro-4-(((2-chlorophenyl)thio)methyl)-1-methyl-3-((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 | C19H18Cl2N2S2 |
| Molecular Weight | 409.40 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 | 2 |
Related Chloro Standards
- 5-Chloro-3-{[(4-chlorophenyl)sulfanyl]methyl}-1-methyl-4-{[(2-methylphenyl)sulfanyl]methyl}-1H-pyrazole (CAS 318234-39-8)
- 5-Chloro-3-{[(4-chlorophenyl)sulfanyl]methyl}-1-methyl-4-{[(4-methylphenyl)sulfanyl]methyl}-1H-pyrazole (CAS 318234-35-4)
- 5-Chloro-4-(((4-chlorophenyl)thio)methyl)-1-methyl-3-((p-tolylthio)methyl)-1H-pyrazole (CAS 318248-65-6)
- 1-(4-(5-Chloro-2-methylphenyl)piperazin-1-yl)-2-((4-chlorophenyl)thio)propan-1-one (CAS 768287-86-1)
- 2-Chloro-1,1,1,3,3,3-hexaethyl-2-(triethylsilyl)trisilane (CAS 30432-47-4)
- 4-[[6-Chloro-3-(4-chloro-2-fluorobenzyl)-2-methylimidazo[1,2-b]pyridazin-8-yl]methyl]morpholine (CAS 1229236-85-4)
- 1785763-83-8 3,5-Bis[(2-chloro-1,3-thiazol-5-yl)methyl]-N-nitro-1,3,5-oxadiazinan-4-imine (CAS 1785763-83-8)
- N-(4-Chloro-3-nitrophenyl)-2-[4-(3-chlorophenyl)piperazin-1-yl]acetamide (CAS 329779-16-0)
Recommended Standards
- 7-(((6-Methylpyridin-2-yl)amino)(4-(trifluoromethyl)phenyl)methyl)quinolin-8-ol (CAS 308294-79-3)
- 2-(4-(4-Methoxyphenyl)piperazin-1-yl)-N-(4-(trifluoromethoxy)phenyl)acetamide (CAS 801228-31-9)
- N-(4-fluorophenyl)-1,3-dimethyl-5-((3-(trifluoromethyl)phenyl)thio)-1H-pyrazole-4-carboxamide (CAS 303997-97-9)
- 2-(4-((4-Methoxy-2-(trifluoromethyl)benzyl)carbamoyl)benzyl)butanoic acid (CAS 1830320-32-5)
- (6-Bromoquinolin-3-yl)methanamine (CAS 1196154-63-8)
- 2-Amino-4-(3-chlorophenyl)-5-(ethylsulfonyl)thiophene-3-carbonitrile (CAS 1710472-27-7)
- 1-[5-(Trifluoromethyl)-1,2,4-oxadiazol-3-yl]cycloheptan-1-amine (CAS 1155958-66-9)
- (R)-2-Phenethyl-piperazine Dihydrochloride (CAS 1217452-20-4)
- Pcb No. 46 (CAS 41464-47-5)
- 1,1'-(Disulfanediylbis(ethane-2,1-diyl))diguanidine dihydrobromide (CAS 15086-17-6)
- 2-Chloro-5-hydrazinylbenzoic acid hydrochloride (CAS 184163-49-3)
- 1-Cyclopentylpiperazin-2-one 2,2,2-trifluoroacetate (CAS 1154868-75-3)
- (1R,2R)-Bis[(4-bromophenyl)methyl]-1,2-cyclohexanediamine (CAS 436855-07-1)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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