4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-6-hydroxy-1-[3-(trifluoromethyl)phenyl]-1,2-dihydropyrimidin-2-one CAS 339012-76-9
| CAS No. | 339012-76-9 |
| Molecular Formula | C21H16ClF6N5O2 |
| Molecular Weight | 519.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-6-hydroxy-1-[3-(trifluoromethyl)phenyl]-1,2-dihydropyrimidin-2-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-6-hydroxy-1-[3-(trifluoromethyl)phenyl]-1,2-dihydropyrimidin-2-one (CAS 339012-76-9), molecular formula C21H16ClF6N5O2 and molecular weight 519.83 g/mol, is a CATO reference standard with documented purity and traceability.
4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-6-hydroxy-1-[3-(trifluoromethyl)phenyl]-1,2-dihydropyrimidin-2-one (C21H16ClF6N5O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
CATO manufactures 4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-6-hydroxy-1-[3-(trifluoromethyl)phenyl]-1,2-dihydropyrimidin-2-one 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 | C21H16ClF6N5O2 |
| Molecular Weight | 519.83 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
Related chloro Standards
- 3-[(1E)-1-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}ethyl]-5-[3-(trifluoromethyl)phenyl]-3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2]oxazole-4,6-dione (CAS 339276-47-0)
- 1-[(5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}thiophen-2-yl)sulfonyl]-4-(4-fluorophenyl)piperazine (CAS 337924-67-1)
- N-(5-Chloro-2-methoxyphenyl)-2-((4-(2-chlorophenyl)-3-cyano-6-phenylpyridin-2-yl)thio)acetamide (CAS 332164-03-1)
- 4-(((4-(5-Chloro-2-(((1S,4r)-4-(((S)-1-methoxypropan-2-yl)amino)cyclohexyl)amino)pyridin-4-yl)thiazol-2-yl)amino)methyl)tetrahydro-2H-pyran-4-carbonitrile (CAS 2247481-22-5)
- 7-Chloro-3-(3,4-dichlorophenyl)-1-((1-ethylpiperidin-3-yl)imino)-10-hydroxy-1,2,3,4-tetrahydroacridin-9(10H)-one (CAS 144128-42-7)
- 3-{2-[(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)amino]pyridin-3-yl}-1-[3-(trifluoromethyl)phenyl]urea (CAS 338772-83-1)
- N-{2-[(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)amino]-5-(trifluoromethyl)phenyl}-4-fluorobenzamide (CAS 478262-28-1)
- 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}-N-(2,3,4,5,6-pentafluorophenyl)benzene-1-sulfonamide (CAS 338775-47-6)
Recommended Standards
- 2-((4-(4-Chlorophenyl)-5-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(3,4-dichlorophenyl)acetamide (CAS 476484-55-6)
- 1,1′-(1,2-Ethanediyldi-5,2-thiophenediyl)bis[1,1,1-trimethylstannane] (CAS 1698837-47-6)
- 2-((4-(4-Chlorophenyl)-5-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2,6-dichlorophenyl)acetamide (CAS 476484-47-6)
- 2-(β-D-Galactosidoxy)naphthol AS-LC (CAS 94123-05-4)
- 1-(1-((4-Methoxyphenyl)sulfonyl)-2-methyl-1H-indol-3-yl)ethan-1-one (CAS 113424-27-4)
- (4-(1H-pyrrol-1-yl)phenyl)(piperidin-1-yl)methanone (CAS 439097-44-6)
- (R)-1-nitrosopyrrolidin-3-amine (CAS CATO-C3D-262247)
- Ethyl 1,2,5,6-tetrahydropyridine-3-carboxylate hydrochloride (CAS 18513-77-4)
- (2-Propoxyphenyl)methanol (CAS 112230-06-5)
- Hydroxychloroquine Impurity 31 (CAS CATO-C4X-183531)
- 1-(Pyridin-2-yl)piperidin-4-one (CAS 264608-41-5)
- 1-Amino-2-phenylcyclopropanecarboxylic acid hydrochloride (CAS 70315-35-4)
- 2-Methoxy-9H-purin-6-amine (CAS 28128-30-5)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com