2-Cyclohexyl-5-phenyloxazole CAS 18860-06-5
| CAS No. | 18860-06-5 |
| Molecular Formula | C20H32O2 |
| Molecular Weight | 304.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H32O2, 2-Cyclohexyl-5-phenyloxazole contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.47 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).
2-Cyclohexyl-5-phenyloxazole (CAS 18860-06-5), molecular formula C20H32O2 and molecular weight 304.47 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H32O2 |
| Molecular Weight | 304.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Cyclohexyl Standards
- 2-Cyclohexyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine-4-thiol (CAS 917749-82-7)
- N-Cyclohexyl-2-(3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazin-2-yl)acetamide (CAS 101586-65-6)
- (E)-3-Cyclohexyl-5-((1,3-dimethyl-1h-pyrazol-4-yl)methylene)-2-mercapto-3,5-dihydro-4h-imidazol-4-one (CAS 896231-12-2)
- 2-Cyclohexyl-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)acetamide (CAS 953011-55-7)
- 3-(1-Cyclohexyl-1H-benzoimidazol-2-ylsulfanyl)-propionic acid (CAS 330955-59-4)
- 5-Cyclohexyl-5-methyl-3-(phenylamino)-2-thioxooxazolidin-4-one (CAS 88051-79-0)
- 1-Cyclohexyl-4-phenylquinazolin-2(1H)-one (CAS 50817-30-6)
- 2-Cyclohexyl-1-phenylquinazolin-4(1H)-one (CAS 71567-82-3)
Recommended Standards
- 1857-21-2 Torulosal (CAS 1857-21-2)
- 8-Abietenic acid (CAS 19402-28-9)
- Ethyl (1R,3S,4S)-4-((tert-butyldimethylsilyl)oxy)-3-fluorocyclohexane-1-carboxylate (CAS 1715032-78-2)
- 8(14)-Abietenic (CAS 19407-37-5)
- 4-[(1-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}ethyl)carbamoyl]butanoic acid (CAS 1184188-37-1)
- 2-[(4-Chlorophenyl)amino]-6-oxo-4-[4-(trifluoromethoxy)phenyl]-1,6-dihydropyrimidine-5-carbonitrile (CAS 1347308-03-5)
- Fenproporex-D6 hydrochloride (CAS 1794783-62-2)
- Methyl 1-(4-aminophenyl)piperidine-4-carboxylate (CAS 471938-27-9)
- 3-Cyclopropyl-4-methyl-5,6,7,8-tetrahydro-5,8-methanocinnoline (CAS 918874-91-6)
- Pancreastatin (33-49), porcine (CAS 106507-61-3)
- Terbutaline Impurity 32 (CAS CATO-C4X-118332)
- (3-allyl-2,4,5-trioxoimidazolidin-1-yl)acetic acid (CAS 885461-65-4)
- Dimethyl 2-Bromo-3-Fluoropentanedioate (CAS 62216-38-0)
- Peptide Impurity 28 (CAS 1350456-64-2)
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