(S)-3-((tert-Butoxycarbonyl)amino)-3-(m-tolyl)propanoic acid CAS 499995-75-4
| CAS No. | 499995-75-4 |
| Molecular Formula | C15H21NO4 |
| Molecular Weight | 279.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (S)-3-((tert-Butoxycarbonyl)amino)-3-(m-tolyl)propanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
(S)-3-((tert-Butoxycarbonyl)amino)-3-(m-tolyl)propanoic acid (CAS 499995-75-4) is a high-purity analytical reference standard with the molecular formula C15H21NO4 and a molecular weight of 279.33 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, (S)-3-((tert-Butoxycarbonyl)amino)-3-(m-tolyl)propanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 279.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C15H21NO4 |
| Molecular Weight | 279.33 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)-2-Hexanamido-3-(4-hydroxyphenyl)propanoic acid (CAS 86432-28-2)
- (S)-3-((tert-Butoxycarbonyl)amino)-3-(p-tolyl)propanoic acid (CAS 479064-96-5)
- (S)-2-Amino-3-(4-(2-(tert-butoxy)-2-oxoethyl)phenyl)propanoic acid (CAS 222842-90-2)
- (S)-3-(Boc-amino)-4-phenylbutyric acid (CAS 51871-62-6)
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