(3S,4S)-1-(tert-butoxycarbonyl)-4-(4-methoxyphenyl)-3-methylpyrrolidine-3-carboxylic acid CAS 1835266-89-1
| CAS No. | 1835266-89-1 |
| Molecular Formula | C18H25NO5 |
| Molecular Weight | 335.39 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.
(3S,4S)-1-(tert-butoxycarbonyl)-4-(4-methoxyphenyl)-3-methylpyrrolidine-3-carboxylic acid (CAS 1835266-89-1), molecular formula C18H25NO5 and molecular weight 335.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3S,4S)-1-(tert-butoxycarbonyl)-4-(4-methoxyphenyl)-3-methylpyrrolidine-3-carboxylic acid (C18H25NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 335.39 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).
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 | C18H25NO5 |
| Molecular Weight | 335.39 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 3-[(Benzyloxy)methyl]-1-{[(tert-butoxy)carbonyl]amino}cyclobutane-1-carboxylic acid (CAS 191110-91-5)
- 4-{[1-(tert-Butoxycarbonyl)piperidin-3-yl]-methoxy}benzoic acid (CAS 162045-40-1)
- ((1R,2S,4R)-4-((tert-Butoxycarbonyl)amino)-2-hydroxycyclopentyl)methyl benzoate (CAS 2177258-94-3)
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