rel-(3aS,6aS)-4-(tert-Butoxycarbonyl)hexahydro-2H-furo[3,2-b]pyrrole-5-carboxylic acid CAS 2137432-64-3
| CAS No. | 2137432-64-3 |
| Molecular Formula | C12H19NO5 |
| Molecular Weight | 257.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rel-(3aS,6aS)-4-(tert-Butoxycarbonyl)hexahydro-2H-furo[3,2-b]pyrrole-5-carboxylic acid (CAS 2137432-64-3) is a high-purity analytical reference standard with the molecular formula C12H19NO5 and a molecular weight of 257.28 g/mol.
Structurally, rel-(3aS,6aS)-4-(tert-Butoxycarbonyl)hexahydro-2H-furo[3,2-b]pyrrole-5-carboxylic acid (C12H19NO5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 257.28 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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.) | 1997 |
| Nitrogen Atoms | 1 |
Recommended Standards
- rel-(1S,2S,3R,4R)-3-((tert-Butoxycarbonyl)amino)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid (CAS 2787516-29-2)
- rel-tert-Butyl (3aR,6aS)-3a-(hydroxymethyl)-1-oxotetrahydro-1H-furo[3,4-c]pyrrole-5(3H)-carboxylate (CAS 2786775-08-2)
- rac-(3aR,6aR)-5-[(tert-butoxy)carbonyl]-hexahydro-2H-furo[2,3-c]pyrrole-6a-carboxylic acid (CAS 2044706-40-1)
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