N-(2,4-difluorophenyl)-1-methyl-5-(p-tolylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide CAS 158712-43-7
| CAS No. | 158712-43-7 |
| Molecular Formula | C19H14F5N3OS |
| Molecular Weight | 427.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-(2,4-difluorophenyl)-1-methyl-5-(p-tolylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 158712-43-7) is a high-purity analytical reference standard with the molecular formula C19H14F5N3OS and a molecular weight of 427.39 g/mol.
Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, N-(2,4-difluorophenyl)-1-methyl-5-(p-tolylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 427.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), N-(2,4-difluorophenyl)-1-methyl-5-(p-tolylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide 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 | C19H14F5N3OS |
| Molecular Weight | 427.39 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related N Standards
- N-(2,4-difluorophenyl)-1,3-dimethyl-5-((3-(trifluoromethyl)phenyl)thio)-1H-pyrazole-4-carboxamide (CAS 303997-98-0)
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- N-(2,4-difluorophenyl)-3-((3-(trifluoromethyl)benzyl)thio)thiophene-2-carboxamide (CAS 250714-47-7)
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Recommended Standards
- (R)-methyl 2-((tert-butoxycarbonyl)amino)-3-(4-(((trifluoromethyl)sulfonyl)oxy)phenyl)propanoate (CAS 149709-56-8)
- 1-Cyclopropyl-7-(4-ethylpiperazin-1-yl)-6-fluoro-4-oxo-8-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 182868-50-4)
- 1-Cyclopropyl-7-(3,5-dimethylpiperazin-1-yl)-6-fluoro-4-oxo-8-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 144634-02-6)
- 3-Amino-N-(2,4-difluorophenyl)-4-(trifluoromethyl)-5H,6H,7H,8H-thieno[2,3-b]quinoline-2-carboxamide (CAS 626227-71-2)
- 4-((2,4-Dimethylphenyl)amino)-1-phenyl-1H-pyrrol-2(5H)-one (CAS 1333469-46-7)
- 2-(4-Methoxyphenyl)-4,4-dimethyl-4,5-dihydrooxazole (CAS 53416-46-9)
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- 2-((2-Chlorobenzyl)amino)-2-oxoethyl 5-bromofuran-2-carboxylate (CAS 386277-36-7)
- 3-(Diphenylphosphino)aniline (CAS 36267-33-1)
- Pentafluorophenyl Fluorosulfonate (CAS 60129-86-4)
- Methyl 2-(azetidin-3-yl)pyrimidine-5-carboxylate hydrochloride (CAS 1958101-03-5)
- 4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-1-(3,3,3-trifluoropropyl)-1H-pyrazole (CAS 1809837-98-6)
- 1-(2,4-Dichlorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (CAS 121582-66-9)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
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