(4S,4′S)-2,2′-(1-Methylethylidene)bis[4,5-dihydro-4-(4-methylphenyl)oxazole] CAS 923571-59-9
| CAS No. | 923571-59-9 |
| Molecular Formula | 2*C23H26N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4S,4′S)-2,2′-(1-Methylethylidene)bis[4,5-dihydro-4-(4-methylphenyl)oxazole] (CAS 923571-59-9) is a high-purity analytical reference standard with the molecular formula C23H26N2O2 and a molecular weight of 362.47 g/mol.
Structurally, (4S,4′S)-2,2′-(1-Methylethylidene)bis[4,5-dihydro-4-(4-methylphenyl)oxazole] (C23H26N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 362.47 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (4S,4′S)-2,2′-(1-Methylethylidene)bis[4,5-dihydro-4-(4-methylphenyl)oxazole] 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 | 2*C23H26N2O2 |
| Molecular Weight | 362.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl 5-(methoxymethyl)-1h-1,2,4-triazole-3-carboxylate (CAS 329984-04-5)
- 1-tert-butoxycarbonyl-4-oxo-piperidine-2-carboxylic acid (CAS 661458-35-1)
- 5,6-Dihydro-4H-pyrrolo[1,2-β]pyrazole-2-carboxylic acid (CAS 796729-03-8)
- 3-Pyrazoleacetic Acid (CAS 102732-63-8)
- 6-Methoxy-2H-pyran-3(6H)-one (CAS 60249-17-4)
- Methyl o-tolylcarbamate (CAS 14983-92-7)
- Bis(4-benzyl-5-(propylthio)-4H-1,2,4-triazol-3-yl)methane (CAS 62575-60-4)
- Ethyl 4-[4-(4-chlorophenyl)piperazin-1-yl]-6-(trifluoromethyl)quinoline-3-carboxylate (CAS 338748-33-7)
- Clemastine Impurity 13 Fumarate (CAS CATO-C4X-183713)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
Why CATO?
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