(βS)-β-[(1,1-tert-Butyloxycarbonyl)amino]-4-hydroxy-benzenepropanoic Acid Methyl Ester CAS 474295-85-7
| CAS No. | 474295-85-7 |
| Molecular Formula | C15H21NO5 |
| Molecular Weight | 295.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(βS)-β-[(1,1-tert-Butyloxycarbonyl)amino]-4-hydroxy-benzenepropanoic Acid Methyl Ester (CAS 474295-85-7) is a high-purity analytical reference standard with the molecular formula C15H21NO5 and a molecular weight of 295.33 g/mol.
The molecular framework of (βS)-β-[(1,1-tert-Butyloxycarbonyl)amino]-4-hydroxy-benzenepropanoic Acid Methyl Ester (C15H21NO5) is characterized by a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H21NO5 |
| Molecular Weight | 295.33 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (S,E)-2-Cinnamamido-3-phenylpropanoic acid (CAS 4950-65-6)
- 1-(1-(tert-Butoxycarbonyl)piperidin-4-yl)-1h-pyrazole-3-carboxylic acid (CAS 2059970-37-3)
- (S)-3-(4-Acetylphenyl)-4-benzyloxazolidin-2-one (CAS 352524-56-2)
- 1-(2-(2-Methoxyphenoxy)ethyl)-1H-indole-3-carbaldehyde (CAS 299936-03-1)
- 1,3-diphenylprop-1-en-2-yl acetate (CAS 75524-59-3)
- Methyl [1-(4-methylbenzoyl)piperidin-4-YL]acetate (CAS 952949-80-3)
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