W 212393 CAS 610323-32-5
| CAS No. | 610323-32-5 |
| Molecular Formula | C27H28N4O2 |
| Molecular Weight | 440.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 440.54 g/mol gives W 212393 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
W 212393 (CAS 610323-32-5), molecular formula C27H28N4O2 and molecular weight 440.54 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, W 212393 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 440.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C27H28N4O2 |
| Molecular Weight | 440.54 g/mol |
| Appearance | Pale yellow to 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
Recommended Standards
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- Methyl 3-(2-{[2-(4-methylbenzamido)phenyl]sulfanyl}acetamido)thiophene-2-carboxylate (CAS 477887-60-8)
- Carbodenafil Impurity 2 (CAS 2711006-62-9)
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- 5-(4-Methoxybenzyl)-1,4,5,6-tetrahydro-1,3,5-triazine-2-thiol (CAS 810634-55-0)
- (R)-3-amino-4-(4-iodophenyl)butanoic acid hydrochloride (CAS 332061-76-4)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
Why CATO?
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