(R)-3-((tert-Butoxycarbonyl)amino)-5-phenylpentanoic acid CAS 218608-83-4
| CAS No. | 218608-83-4 |
| Molecular Formula | C16H23NO4 |
| Molecular Weight | 293.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-3-((tert-Butoxycarbonyl)amino)-5-phenylpentanoic acid (CAS 218608-83-4) is a high-purity analytical reference standard with the molecular formula C16H23NO4 and a molecular weight of 293.36 g/mol.
(R)-3-((tert-Butoxycarbonyl)amino)-5-phenylpentanoic acid (C16H23NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C16H23NO4 |
| Molecular Weight | 293.36 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.) | 2019 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-3-((tert-Butoxycarbonyl)amino)-4-(p-tolyl)butanoic acid (CAS 269398-85-8)
- (S)-1-Benzyl 5-tert-butyl 2-aminopentanedioate (CAS 62188-74-3)
- (R)-3-((tert-Butoxycarbonyl)amino)-4-(m-tolyl)butanoic acid (CAS 269398-83-6)
- (S)-2-((tert-butoxycarbonyl)amino)-3-(2,3-dimethylphenyl)propanoic acid (CAS 849440-32-0)
- 2-((1-Methyl-1H-tetrazol-5-yl)thio)-1-(2-methylindolin-1-yl)ethan-1-one (CAS 380170-59-2)
- 2-(3,4-Dimethoxyphenyl)-7-hydroxy-5-methoxy-4H-chromen-4-one (CAS 10544-05-5)
- Melitracen Hydrochloride (CAS 10563-70-9)
- (S)-2-(Benzylamino)-2-(4-fluorophenyl)acetic acid (CAS 159707-18-3)
- 2,2-Difluoro-3-(4-methoxyphenyl)cyclopropane-1-carboxylic acid (CAS 2098003-85-9)
- Propafenone EP Impurity F (CAS 1329643-40-4)
- Kathon 886 (CAS 55965-84-9)
- 4-(4-Butoxybenzoyl)-2-methylpyridine (CAS 1187169-01-2)
- Ethyl 6-bromo-3-chloro-2-fluorobenzoate (CAS 1804897-13-9)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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