(4S,4′S)-2,2′-(2-Bromo-1,3-phenylene)bis[4,5-dihydro-4-(phenylmethyl)oxazole] CAS 189632-09-5
| CAS No. | 189632-09-5 |
| Molecular Formula | C26H23BrN2O2 |
| Molecular Weight | 475.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4S,4′S)-2,2′-(2-Bromo-1,3-phenylene)bis[4,5-dihydro-4-(phenylmethyl)oxazole] (CAS 189632-09-5), a certified reference material (molecular formula C26H23BrN2O2, MW 475.38 g/mol) for analytical method development and quality control.
Based on its molecular formula C26H23BrN2O2, (4S,4′S)-2,2′-(2-Bromo-1,3-phenylene)bis[4,5-dihydro-4-(phenylmethyl)oxazole] contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 475.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C26H23BrN2O2 |
| Molecular Weight | 475.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- tert-Butyl 4-{4-[5-(2,4-dichlorophenyl)-1,2,4-oxadiazol-3-yl]phenyl}piperazine-1-carboxylate (CAS 1272756-35-0)
- Picloxydine - API Standards (CAS 5636-92-0)
- tert-Butyl 4-{4-[5-(3,4-dichlorophenyl)-1,2,4-oxadiazol-3-yl]phenyl}piperazine-1-carboxylate (CAS 1272756-31-6)
- 3-{1-[2-(carbamoyloxy)ethyl]-5-[(3 5-dichlorophenyl)sulfanyl]-4-(1-methylethyl)-1h-imidazol-2-yl}propyl carbamate (CAS 178980-46-6)
- Ethyl 2-(4-acetylphenoxy)-2-methylpropanoate (CAS 29884-24-0)
- Methyl 2-amino-4-(pyridin-2-yl)thiophene-3-carboxylate (CAS 1019521-30-2)
- 2-(3-Bromofuran-2-yl)ethan-1-ol (CAS 1343633-05-5)
- 3-Isopropyl-1-methyl-4-propyl-1h-pyrazol-5-amine (CAS 1517004-47-5)
- N-(3-(1H-Pyrazol-5-yl)benzyl)-1-phenylmethanamine (CAS 179056-17-8)
- 1-(tert-Butoxycarbonyl)-3-(2-cyclopropylethyl)proline (CAS 1426953-67-4)
- (6-Chloropyridin-3-yl)(thiazol-2-yl)methanone (CAS 890100-46-6)
- Ethyl 6-Chloroindole-3-carboxylate (CAS 100821-50-9)
- 2-(Chloromethyl)-4-(difluoromethyl)pyridine-5-carbonyl chloride (CAS 1805328-88-4)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
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