2-(Bis(2-methoxyphenyl)phosphino)benzenesulfonic acid CAS 257290-43-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 257290-43-0 |
| Molecular Formula | C20H19O5PS |
| Molecular Weight | 402.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 2-(Bis(2-methoxyphenyl)phosphino)benzenesulfonic acid (CAS 257290-43-0) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C20H19O5PS. Molecular weight: 402.40 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C20H19O5PS |
| Molecular Weight | 402.40 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related Bis Standards
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Recommended Standards
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