N-(4-Chlorophenyl)-N-[1-ethoxy-2-(1H-1,2,4-triazol-1-yl)ethylidene]urea CAS 338418-77-2
| CAS No. | 338418-77-2 |
| Molecular Formula | C13H14ClN5O2 |
| Molecular Weight | 307.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-(4-Chlorophenyl)-N-[1-ethoxy-2-(1H-1,2,4-triazol-1-yl)ethylidene]urea is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N-(4-Chlorophenyl)-N-[1-ethoxy-2-(1H-1,2,4-triazol-1-yl)ethylidene]urea (CAS 338418-77-2), molecular formula C13H14ClN5O2 and molecular weight 307.74 g/mol, is a CATO reference standard with documented purity and traceability.
N-(4-Chlorophenyl)-N-[1-ethoxy-2-(1H-1,2,4-triazol-1-yl)ethylidene]urea (C13H14ClN5O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 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.
As a certified reference material (CRM), N-(4-Chlorophenyl)-N-[1-ethoxy-2-(1H-1,2,4-triazol-1-yl)ethylidene]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 | C13H14ClN5O2 |
| Molecular Weight | 307.74 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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Recommended Standards
- (R)-2-(2-chloro-5-methylpyrimidin-4-yl)-6-(methoxymethyl)-6,7-dihydroimidazo[1,2-a]pyrazin-8(5H)-one (CAS 2097417-60-0)
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- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-3-isopropylpiperazine (CAS 1781241-43-7)
- N-(5-Chloro-2-methoxyphenyl)-N-(methylsulfonyl)alanine (CAS 1008229-95-5)
- 9-Ethyl-1H-purine-6(9H)-thione (CAS 5427-20-3)
- 5994-87-6 A832549 [amino(phenyl)phosphoryl]benzene [azanyl(phenyl)phosphoryl]benzene (CAS 5994-87-6)
- Bz-Phe-OH (CAS 2566-22-5)
- 1-Bromo-4-dodecylbenzene (CAS 126930-72-1)
- (E)-3-(2-(4-fluorophenoxy)phenyl)acrylic acid (CAS 338393-64-9)
- (1-(Tetrahydro-2H-pyran-2-yl)cyclobutyl)methanol (CAS 2137815-51-9)
- 1-Chloro-3-methyl-2-(trichloromethoxy)benzene (CAS 1404194-71-3)
- 5-Phenyl-2-(p-tolyl)oxazole (CAS 16155-60-5)
- 4-Bromo-2-chloro-3-(methoxymethoxy)pyridine (CAS 1542143-40-7)
- D-[Phe]6-Liraglutide (CAS CATO-C4X-199235)
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