(4R)-Fmoc-4-phenoxy-L-proline CAS 1313390-76-9
| CAS No. | 1313390-76-9 |
| Molecular Formula | C26H23NO5 |
| Molecular Weight | 429.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
(4R)-Fmoc-4-phenoxy-L-proline (CAS 1313390-76-9) is a high-purity analytical reference standard with the molecular formula C26H23NO5 and a molecular weight of 429.46 g/mol.
Based on its molecular formula C26H23NO5, (4R)-Fmoc-4-phenoxy-L-proline contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 429.46 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).
As a certified reference material (CRM), (4R)-Fmoc-4-phenoxy-L-proline 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 | C26H23NO5 |
| Molecular Weight | 429.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3-Bromo-4-iodo-N,N-dimethylaniline (CAS 1369904-13-1)
- 2-(3-Fluoro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1350426-06-0)
- 3-[5-(Chloromethyl)-1,3,4-oxadiazol-2-yl]phenol (CAS 954586-78-8)
- Dexpanthenol impurity 31 (CAS 1112-32-9（free base）)
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- 1-(2-(2-Chlorophenyl)-2-(dimethylamino)ethyl)-3-(thiophen-2-ylmethyl)urea (CAS 1206994-32-2)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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