5-Chloro-4-{[(2,3-dichlorophenyl)sulfanyl]methyl}-1-methyl-3-{[(4-methylphenyl)sulfanyl]methyl}-1H-pyrazole CAS 318248-66-7
| CAS No. | 318248-66-7 |
| Molecular Formula | C19H17Cl3N2S2 |
| Molecular Weight | 443.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-4-{[(2,3-dichlorophenyl)sulfanyl]methyl}-1-methyl-3-{[(4-methylphenyl)sulfanyl]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.
5-Chloro-4-{[(2,3-dichlorophenyl)sulfanyl]methyl}-1-methyl-3-{[(4-methylphenyl)sulfanyl]methyl}-1H-pyrazole (CAS 318248-66-7) is a high-purity analytical reference standard with the molecular formula C19H17Cl3N2S2 and a molecular weight of 443.84 g/mol.
5-Chloro-4-{[(2,3-dichlorophenyl)sulfanyl]methyl}-1-methyl-3-{[(4-methylphenyl)sulfanyl]methyl}-1H-pyrazole (C19H17Cl3N2S2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H17Cl3N2S2 |
| Molecular Weight | 443.84 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
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Recommended Standards
- 1523406-39-4 (S)-1-((5-Chloropyridin-3-yl)methyl)-8-((R)-3-methylmorpholino)-2-(trifluoromethyl)-3,4-dihydro-1H-pyrimido[1,2-a]pyrimidin-6(2H)-one MFCD28411361 (CAS 1523406-39-4)
- (R)-1-((5-Chloropyridin-3-yl)methyl)-8-((R)-3-methylmorpholino)-2-(trifluoromethyl)-3,4-dihydro-1H-pyrimido[1,2-a]pyrimidin-6(2H)-one (CAS 1946010-79-2)
- (E)-{[2-(4-chlorophenyl)-7-methylimidazo[1,2-a]pyridin-3-yl]methylidene}({[3-(trifluoromethyl)phenyl]methoxy})amine (CAS 478257-49-7)
- 3-((4-Chlorobenzyl)sulfinyl)-4-ethyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 956607-36-6)
- (S)-2-Amino-N-((S)-1-benzylpyrrolidin-3-yl)-N-ethylpropanamide (CAS 1401666-30-5)
- Ethyl 8-(3-cyanophenyl)-8-oxooctanoate (CAS 951885-66-8)
- 2-(2,2,2-Trifluoroethoxy)isonicotinic acid (CAS 262296-01-5)
- 3-Amino-2-methylbenzaldehyde (CAS 1261811-03-3)
- 4-Acetoxy-2-naphthoic acid (CAS 6566-42-3)
- (S)-2'-(Diphenylphosphino)-[1,1'-binaphthalen]-2-ol (CAS 144868-15-5)
- N-(4-chlorophenyl)-6-oxo-1-phenyl-4-(propylthio)-1,6-dihydropyridazine-3-carboxamide (CAS 339031-96-8)
- 4-(1-Aminoethyl)phenol hydrochloride (CAS 860767-47-1)
- 2-{[(3,4-dichlorophenyl)methyl]sulfanyl}-5-methoxy-4-(methylsulfanyl)pyrimidine (CAS 339276-06-1)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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