(R)-2-((tert-Butoxycarbonyl)amino)-4-(naphthalen-1-yl)butanoic acid CAS 188647-18-9
| CAS No. | 188647-18-9 |
| Molecular Formula | C19H23NO4 |
| Molecular Weight | 329.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 329.39 g/mol gives (R)-2-((tert-Butoxycarbonyl)amino)-4-(naphthalen-1-yl)butanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(R)-2-((tert-Butoxycarbonyl)amino)-4-(naphthalen-1-yl)butanoic acid (CAS 188647-18-9) is a high-purity analytical reference standard with the molecular formula C19H23NO4 and a molecular weight of 329.39 g/mol.
Based on its molecular formula C19H23NO4, (R)-2-((tert-Butoxycarbonyl)amino)-4-(naphthalen-1-yl)butanoic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 329.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C19H23NO4 |
| Molecular Weight | 329.39 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (S)-2-((tert-Butoxycarbonyl)amino)-4-(naphthalen-1-yl)butanoic acid (CAS 188647-17-8)
- 2-(4-Fluorophenyl)-5-methyl-1-(4-(methylsulfonyl)phenyl)-1H-pyrrole (CAS 189500-91-2)
- [3-(1-Phenyl-cyclobutyl)-[1,2,4]oxadiazol-5-ylmethyl]-carbamic acid tert-butyl ester (CAS 1858242-09-7)
- (R)-3-((tert-Butoxycarbonyl)amino)-4-(naphthalen-1-yl)butanoic acid (CAS 190190-49-9)
- (2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-3,4-diyl diacetate (CAS 63500-40-3)
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- Prop-2-yn-1-yl nicotinate (CAS 24641-06-3)
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- 2-Bromo-3-chloro-6-hydroxybenzonitrile (CAS 1934463-16-7)
- C-Peptide 2 (rat) (CAS 41594-08-5)
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