1-(2-Ethylphenyl)urea CAS 114-32-9
| CAS No. | 114-32-9 |
| Molecular Formula | C20H26O2 |
| Molecular Weight | 298.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(2-Ethylphenyl)urea (CAS 114-32-9), molecular formula C20H26O2 and molecular weight 298.42 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(2-Ethylphenyl)urea (C20H26O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 298.42 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 1-(2-Ethylphenyl)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 | C20H26O2 |
| Molecular Weight | 298.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ethylphenyl Standards
- 1-(4-Ethylphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1402172-70-6)
- 3-(4-Ethylphenyl)-4-iodo-1H-pyrazole (CAS 1343634-88-7)
- N-(2-((4-Ethylphenyl)amino)-2-oxoethyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 1235096-85-1)
- N-(4-(4-Ethylphenyl)thiazol-2-yl)isoxazole-5-carboxamide (CAS 919758-94-4)
- N-(2-Ethylphenyl)-2-(4-methoxyphenoxy)propanamide (CAS 302806-58-2)
- 1-[1-(4-Ethylphenyl)-1H-1,2,3-triazole-4-carbonyl]piperidin-4-amine (CAS 1351779-88-8)
- N-(2-Ethylphenyl)-1-(thiophen-2-yl)cyclopentane-1-carboxamide (CAS 1049554-15-5)
- 1-[(4-Ethylphenyl)sulfonyl]piperidine-4-carboxylic acid (CAS 345990-55-8)
Recommended Standards
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- 3-O-Methyl Estrone Hydrazone (CAS 105663-60-3)
- Cyclodiol (CAS 116229-13-1)
- rel-(1R,2R)-2-Hydroxycyclohexanecarboxylic acid (CAS 17502-32-8)
- 3-Bromo-4-fluorobenzohydrazide (CAS 929884-90-2)
- N1-[3-(2,3,4,5,6-pentafluorophenoxy)phenyl]-4-fluorobenzamide (CAS 201481-20-1)
- 2-((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 763095-00-7)
- Finerenone Impurity 59 (CAS CATO-C4X-288059)
- Methyl 2-methyl-3-(methylamino)propanoate (CAS 21388-25-0)
- Antimonyphosphate (CAS 12036-46-3)
- Tofacitinib Impurity 154 (CAS 2174011-54-0)
- Pramipexole Impurity 50 (CAS CATO-C4X-110750)
- Anorexigenic Peptide (CAS 69275-10-1)
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