(4S,4'S)-2,2'-(2-(Trimethylstannyl)-1,3-phenylene)bis(4-isopropyl-4,5-dihydrooxazole) CAS 196407-81-5
| CAS No. | 196407-81-5 |
| Molecular Formula | C21H32N2O2Sn |
| Molecular Weight | 463.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(4S,4'S)-2,2'-(2-(Trimethylstannyl)-1,3-phenylene)bis(4-isopropyl-4,5-dihydrooxazole) (CAS 196407-81-5), molecular formula C21H32N2O2Sn and molecular weight 463.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (4S,4'S)-2,2'-(2-(Trimethylstannyl)-1,3-phenylene)bis(4-isopropyl-4,5-dihydrooxazole) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 463.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C21H32N2O2Sn |
| Molecular Weight | 463.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)amino}ethan-1-ol (CAS 190437-61-7)
- 2-Hydroxypropyl (tributylstannyl) maleate (CAS 28375-10-2)
- 1024280-79-2 2-(3-bromophenyl)-1-(3,4-dichlorophenyl)-6,6-dimethyl-4,5,6,7-tetrahydro-1H-indol-4-one MS-10299 (CAS 1024280-79-2)
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- 1-Cyclopropyl-2-(thietan-3-ylamino)ethan-1-ol (CAS 1849294-88-7)
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- Methyl 2-methoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 1052647-21-8)
- 1-(2,6-Dioxopiperidin-3-yl)-3-methyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carbaldehyde (CAS 2360518-87-0)
- 4-(4-Chlorophenyl)-5-(cyclohexylsulfanyl)-1,2,3-thiadiazole (CAS 337380-11-7)
- Monofucosyl-para-lacto-N-hexaose IV (CAS 115236-58-3)
- 1-(Tert-butoxycarbonyl)-4-methylenepiperidine-2-carboxylic acid (CAS 407627-05-8)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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