(R)-Tolvaptan CAS 331947-66-1
| CAS No. | 331947-66-1 |
| Molecular Formula | C26H25ClN2O3 |
| Molecular Weight | 448.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (R)-Tolvaptan under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies (R)-Tolvaptan (CAS 331947-66-1), a certified reference material (molecular formula C26H25ClN2O3, MW 448.94 g/mol) for analytical method development and quality control.
Structurally, (R)-Tolvaptan (C26H25ClN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 448.94 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H25ClN2O3 |
| Molecular Weight | 448.94 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related R Standards
- (S)-Tolvaptan (CAS 331947-44-5)
- Tolvaptan Impurity 111 (CAS CATO-C4X-1955111)
- Tolvaptan Impurity 26 (CAS 1580889-25-3)
- Tolvaptan (CAS 150683-30-0)
- Tolvaptan Impurity 69 (CAS 1580889-27-5)
- Tolvaptan Impurity 14 (CAS 137973-76-3)
- Tolvaptan Impurity 67 (CAS 1580889-26-4)
- Tolvaptan Impurity 68 (CAS 1580889-24-2)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com