H-His-Phe-βNA CAS 121722-58-5
| CAS No. | 121722-58-5 |
| Molecular Formula | C25H25N5O2 |
| Molecular Weight | 500.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 500.42 g/mol gives H-His-Phe-βNA distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-His-Phe-βNA (CAS 121722-58-5) is a high-purity analytical reference standard with the molecular formula C25H25N5O2 and a molecular weight of 500.42 g/mol.
The molecular framework of H-His-Phe-βNA (C25H25N5O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C25H25N5O2 |
| Molecular Weight | 500.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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.) | 1991 |
| Nitrogen Atoms | 5 |
Recommended Standards
- Regadenoson Impurity 48 (CAS CATO-C4X-198548)
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Why CATO?
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