1-Methyl-4-((2,4,5-trichlorophenoxy)methyl)-3-(trifluoromethyl)-5-(3-(trifluoromethyl)phenoxy)-1H-pyrazole CAS 318959-18-1
| CAS No. | 318959-18-1 |
| Molecular Formula | C19H11Cl3F6N2O2 |
| Molecular Weight | 519.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methyl-4-((2,4,5-trichlorophenoxy)methyl)-3-(trifluoromethyl)-5-(3-(trifluoromethyl)phenoxy)-1H-pyrazole (CAS 318959-18-1), molecular formula C19H11Cl3F6N2O2 and molecular weight 519.65 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Methyl-4-((2,4,5-trichlorophenoxy)methyl)-3-(trifluoromethyl)-5-(3-(trifluoromethyl)phenoxy)-1H-pyrazole (C19H11Cl3F6N2O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 1-Methyl-4-((2,4,5-trichlorophenoxy)methyl)-3-(trifluoromethyl)-5-(3-(trifluoromethyl)phenoxy)-1H-pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H11Cl3F6N2O2 |
| Molecular Weight | 519.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 6-Methyl-5-(2,4,5-trichlorophenoxy)-3-[3-(trifluoromethyl)phenyl]-1,2,4-triazine (CAS 339103-84-3)
- 2-(2,4,5-Trichlorophenoxy)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 2377-27-7)
- N-(3-(2,4,6-trichlorophenoxy)prop-1-yn-1-yl)piperidine-1-carbothioamide (CAS 23341-91-5)
- 1-({Propyl[2-(2,4,6-trichlorophenoxy)ethyl]carbamoyl}amino)formamide (CAS 1296346-84-3)
- 3-Phenyl-5-((2,4,5-trichlorophenoxy)methyl)-4,5-dihydroisoxazole (CAS 827628-55-7)
- 1-Methyl-2-(2,4,5-trichlorophenoxy)-1H-indole-3-carbaldehyde (CAS 338416-88-9)
- 3-Phenyl-5-[(2,4,5-trichlorophenoxy)methyl]-1,2-oxazole (CAS 478066-43-2)
- 3-[(2,4,6-trichlorophenoxy)methyl]benzohydrazide (CAS 832737-82-3)
Recommended Standards
- MP A08 (CAS 219832-49-2)
- Rosuvastatin Impurity 128 (CAS CATO-C4X-1169128)
- Isobutyl 2-(1-allyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618077-83-1)
- Lecithin Impurity 4 (CAS 15895-41-7)
- 4-[4-(Benzenesulfonyl)piperazin-1-yl]benzonitrile (CAS 478046-73-0)
- (E)-Methoxy({1-[3-(morpholin-4-yl)-5-(trifluoromethyl)pyridin-2-yl]ethylidene})amine (CAS 866145-12-2)
- 4-Chloro-4-methyl-1-pentene (CAS 53875-83-5)
- Benzyl 5-bromo-1,2-dihydrospiro[indole-3,4'-piperidine]-1'-carboxylate (CAS 438192-14-4)
- N,N,9-Trimethyl-9H-fluorene-3-carboxamide (CAS 38274-95-2)
- Cyclo(-Gly-His) (CAS 15266-88-3)
- 1-(3-Cyclopropyl-1H-1,2,4-triazol-5-yl)-2-methylpropan-1-amine (CAS 1247448-02-7)
- 4-Methyl-1-piperazineacetonitrile (CAS 874-77-1)
- 2-(Dimethylamino)-2-(2-(trifluoromethyl)phenyl)acetic acid (CAS 1007878-84-3)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
Why CATO?
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