Fmoc-D-Pen(Acm)-OH CAS 201531-77-3
| CAS No. | 201531-77-3 |
| Molecular Formula | C23H26N2O5S |
| Molecular Weight | 442.53 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.
Fmoc-D-Pen(Acm)-OH (CAS 201531-77-3) is a high-purity analytical reference standard with the molecular formula C23H26N2O5S and a molecular weight of 442.53 g/mol.
Structurally, Fmoc-D-Pen(Acm)-OH (C23H26N2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 442.53 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Fmoc-D-Pen(Acm)-OH 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 | C23H26N2O5S |
| Molecular Weight | 442.53 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fmoc Standards
- Fmoc-Pen(Acm)-OH (CAS 201531-76-2)
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Recommended Standards
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- 4-(Furan-2-ylmethyl)thiomorpholine-3-carboxylic acid (CAS 1543418-92-3)
- 2-(Difluoromethyl)-3-iodo-6-methylpyridine-5-carboxamide (CAS 1806950-43-5)
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- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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