1-(6-Chloro-4-trifluoromethyl-pyridin-2-yl)-3-ethyl-1-methyl-urea CAS 1311278-68-8
| CAS No. | 1311278-68-8 |
| Molecular Formula | C10H11ClF3N3O |
| Molecular Weight | 281.66 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.
1-(6-Chloro-4-trifluoromethyl-pyridin-2-yl)-3-ethyl-1-methyl-urea (CAS 1311278-68-8), molecular formula C10H11ClF3N3O and molecular weight 281.66 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H11ClF3N3O, 1-(6-Chloro-4-trifluoromethyl-pyridin-2-yl)-3-ethyl-1-methyl-urea contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 281.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 1-(6-Chloro-4-trifluoromethyl-pyridin-2-yl)-3-ethyl-1-methyl-urea 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 | C10H11ClF3N3O |
| Molecular Weight | 281.66 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 3-Chloro-2-((tetrahydro-2H-pyran-4-yl)oxy)-5-(trifluoromethyl)pyridine (CAS 1217013-38-1)
- 2-Chloro-n-{2-[4-(trifluoromethyl)phenoxy]ethyl}acetamide (CAS 1258640-40-2)
- 2-Chloro-n-{2-[3-(trifluoromethyl)phenoxy]ethyl}acetamide (CAS 1258641-15-4)
- 2-Chloro-n-{2-[4-(trifluoromethoxy)phenyl]ethyl}acetamide (CAS 1258641-19-8)
- 2-Chloro-n-{1-[4-(trifluoromethoxy)phenyl]ethyl}acetamide (CAS 1306604-49-8)
- 1-(6-Chloro-4(-trifluoromethyl)pyridin-2-yl)-1,3,3-trimethylurea (CAS 1311278-57-5)
- 2-Chloro-4-[3-(trifluoromethyl)phenyl]benzonitrile (CAS 154606-29-8)
- 2-chloro-N-(4-methoxyphenyl)-N-(2,2,2-trifluoroethyl)acetamide (CAS 878218-53-2)
Recommended Standards
- tert-Butyl 6-chloro-4-(trifluoromethyl)nicotinate (CAS 1649470-18-7)
- 4-Cyano-3-difluoromethoxy-5-methylbenzenesulfonyl chloride (CAS 1804929-28-9)
- 3'-Chloro-4'-(trifluoromethyl)-[1,1'-biphenyl]-2-carbonitrile (CAS 442670-46-4)
- 4-[3-Chloro-4-(trifluoromethoxy)phenyl]morpholine (CAS 886762-50-1)
- 3-(3-Chloro-4-fluorophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid (CAS 1283108-59-7)
- N-hexyltetrahydro-2H-thiopyran-4-amine (CAS 1153794-02-5)
- 3,5-Bis(benzyloxy)picolinic acid (CAS 1000025-93-3)
- 5-(5-Methylthiophen-2-yl)-5-oxopentanoic acid (CAS 41042-93-7)
- Ursodeoxycholic acid impurity 27 (CAS 77059-13-3)
- Methyl 7-chloropyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1784507-89-6)
- 6-Nitroquinazoline (CAS 7556-95-8)
- 1-Bromo-4-((pentyloxy)methyl)benzene (CAS 153407-09-1)
- 2-(6-oxopiperidin-2-yl)propanedioic acid (CAS 1803612-18-1)
- Tau Peptide (295-309) trifluoroacetate salt (CAS 330456-46-7)
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