(S)-2-Amino-3-(4-ethynylphenyl)propanoic acid CAS 278605-15-5
| CAS No. | 278605-15-5 |
| Molecular Formula | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H11NO2, (S)-2-Amino-3-(4-ethynylphenyl)propanoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies (S)-2-Amino-3-(4-ethynylphenyl)propanoic acid (CAS 278605-15-5), a certified reference material (molecular formula C11H11NO2, MW 189.21 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), (S)-2-Amino-3-(4-ethynylphenyl)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.
Physical & Chemical Properties
| Molecular Formula | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- (S)-2-amino-3-(3-ethynylphenyl)propanoic acid (CAS 956094-42-1)
- (Z)-tert-Butyl (2-amino-2-(hydroxyimino)ethyl)carbamate (CAS 479080-20-1)
- (S)-2-(1H-indol-1-yl)propanoic acid (CAS 943654-38-4)
- [5-(2-Amino-phenyl)-furan-2-yl]-methanol (CAS 886494-68-4)
- 2,2'-Disulfanediylbis(N-methylethan-1-amine) dihydrochloride (CAS 15788-33-7)
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