Rosabulin CAS 501948-05-6
| CAS No. | 501948-05-6 |
| Molecular Formula | C22H16N4O2S |
| Molecular Weight | 400.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C22H16N4O2S, Rosabulin contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 400.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Rosabulin (CAS 501948-05-6), molecular formula C22H16N4O2S and molecular weight 400.45 g/mol, is a CATO reference standard with documented purity and traceability.
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), Rosabulin 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 | C22H16N4O2S |
| Molecular Weight | 400.45 g/mol |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Oxacillin Impurity 29 (CAS CATO-C4X-232129)
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- PTH-Cysteic acid sodium salt (CAS 108321-85-3)
- Galanin Message Associated Peptide (1-41) amide trifluoroacetate salt (CAS 132699-74-2)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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