methyl (3R,4S)-4-(tert-butoxycarbonylamino)-3-hydroxy-cyclopentene-1-carboxylate CAS 329910-37-4
| CAS No. | 329910-37-4 |
| Molecular Formula | C12H19NO5 |
| Molecular Weight | 257.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
methyl (3R,4S)-4-(tert-butoxycarbonylamino)-3-hydroxy-cyclopentene-1-carboxylate (CAS 329910-37-4), molecular formula C12H19NO5 and molecular weight 257.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of methyl (3R,4S)-4-(tert-butoxycarbonylamino)-3-hydroxy-cyclopentene-1-carboxylate (C12H19NO5) is characterized by an amino-acid-derived structure, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C12H19NO5 |
| Molecular Weight | 257.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl (3R,4R)-4-((tert-butoxycarbonyl)amino)-3-hydroxycyclopent-1-ene-1-carboxylate (CAS 329910-41-0)
- methyl (3S,4R)-4-(tert-butoxycarbonylamino)-3-hydroxy-cyclopentene-1-carboxylate (CAS 329910-42-1)
- L-Alanine, N-acetyl-, 1-naphthalenyl ester (CAS 69975-68-4)
- Methyl (3S,4S)-4-((tert-butoxycarbonyl)amino)-3-hydroxycyclopent-1-ene-1-carboxylate (CAS 2166238-57-7)
- 2-{2-[4-(1,1,3,3-Tetramethylbutyl)phenoxy]-ethyl}piperidine hydrochloride (CAS 1219982-13-4)
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