3-Chloro-2-{[7-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}-5-(trifluoromethyl)pyridine CAS 338775-15-8
| CAS No. | 338775-15-8 |
| Molecular Formula | C18H11ClF3N5OS |
| Molecular Weight | 437.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-2-{[7-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}-5-(trifluoromethyl)pyridine (C18H11ClF3N5OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; 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).
3-Chloro-2-{[7-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}-5-(trifluoromethyl)pyridine (CAS 338775-15-8), molecular formula C18H11ClF3N5OS and molecular weight 437.83 g/mol, is a CATO reference standard with documented purity and traceability.
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), 3-Chloro-2-{[7-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}-5-(trifluoromethyl)pyridine 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 | C18H11ClF3N5OS |
| Molecular Weight | 437.83 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 6-Chloro-N,N-bis(4-methoxybenzyl)-5-(trifluoromethyl)pyrazin-2-amine (CAS 2638502-33-5)
- N-{[5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl}-N-(4-methoxyphenyl)-4-methylbenzamide (CAS 956368-31-3)
- 2-[(2-Chloro-6-fluorophenyl)methyl]-4-[(1E)-({[3-(trifluoromethyl)phenyl]methyl}imino)methyl]benzene-1,3-diol (CAS 341967-52-0)
- Methyl2-([(4-chloro-3-nitrophenyl)sulfonyl]amino)-3-(1h-indol-3-yl)propanoate (CAS 302333-12-6)
- 1-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-indol-3-yl}-2-(morpholin-4-yl)ethane-1,2-dione (CAS 338409-89-5)
- 1-[(2-Chloro-6-fluorophenyl)methyl]-4-{5-[3-(trifluoromethyl)phenyl]-1H-pyrazol-3-yl}piperidine (CAS 1030385-99-9)
- 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}-N-[3-(dimethylamino)propyl]benzene-1-sulfonamide (CAS 338981-12-7)
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Recommended Standards
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- 4-Amino-2-chloronicotinamide (CAS 1216816-10-2)
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- 6,7-Dichloroquinoxalin-2(1H)-one (CAS 78470-95-8)
- 3-Amino-1-(4-methoxyphenyl)azetidin-2-one hydrochloride (CAS 1461704-74-4)
- Liraglutide (CAS 204656-20-2)
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