(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)-2-methylpropanoic acid CAS 220155-72-6
| CAS No. | 220155-72-6 |
| Molecular Formula | C32H32N2O6 |
| Molecular Weight | 540.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)-2-methylpropanoic acid (CAS 220155-72-6) is a high-purity analytical reference standard with the molecular formula C32H32N2O6 and a molecular weight of 540.61 g/mol.
Structurally, (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)-2-methylpropanoic acid (C32H32N2O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 540.61 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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 | C32H32N2O6 |
| Molecular Weight | 540.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)butanoic acid (CAS 1823696-44-1)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-((1-(tert-butoxycarbonyl)-1H-indol-3-yl)methyl)propanoic acid (CAS 468721-48-4)
- Fmoc-Trp(N-CH2-COOtBu)-OH (CAS 1629658-33-8)
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