Tolvaptan Impurity 28 CAS 317374-08-6
| CAS No. | 317374-08-6 |
| Molecular Formula | C16H15NO3 |
| Molecular Weight | 269.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Tolvaptan Impurity 28 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.
CATO supplies Tolvaptan Impurity 28 (CAS 317374-08-6), a pharmacopoeial impurity reference standard (molecular formula C16H15NO3, MW 269.30 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Tolvaptan Impurity 28 (C16H15NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 269.30 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C16H15NO3 |
| Molecular Weight | 269.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Tolvaptan Standards
- Tolvaptan Impurity 53 (CAS CATO-C4X-195553)
- Tolvaptan Impurity 63 (CAS CATO-C4X-195563)
- Tolvaptan Impurity 81 (CAS 1118884-67-5)
- Tolvaptan Impurity 82 (CAS 1306528-12-0)
- Tolvaptan Impurity 97 (CAS 1030654-92-2)
- Tolvaptan Impurity 5 (CAS CATO-C4X-19555)
- Tolvaptan Impurity 119 (CAS CATO-C4X-1955119)
- Tolvaptan Impurity 54 (CAS 1118884-66-4)
Recommended Standards
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- Febantel EP Impurity A (CAS 92088-58-9)
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- Empagliflozin Impurity 117 (CAS CATO-C4X-1065117)
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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
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com