(R)-2-Amino-4-(3,4-dichlorophenyl)butanoic acid CAS 1260596-03-9
| CAS No. | 1260596-03-9 |
| Molecular Formula | C10H11Cl2NO2 |
| Molecular Weight | 248.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(R)-2-Amino-4-(3,4-dichlorophenyl)butanoic acid (CAS 1260596-03-9) is a high-purity analytical reference standard with the molecular formula C10H11Cl2NO2 and a molecular weight of 248.11 g/mol.
Structurally, (R)-2-Amino-4-(3,4-dichlorophenyl)butanoic acid (C10H11Cl2NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 248.11 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C10H11Cl2NO2 |
| Molecular Weight | 248.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related R Standards
- Methyl 3-amino-3-(2,6-dichlorophenyl)propanoate (CAS 1038338-84-9)
- 4-Amino-4-(3,4-dichlorophenyl)butanoic acid (CAS 1097824-74-2)
- methyl 2-amino-2-(3,4-dichlorophenyl)propanoate (CAS 1178456-31-9)
- Ethyl 2-(4-amino-3,5-dichlorophenyl)acetate (CAS 1258845-93-0)
- (R)-3-amino-2-(2,4-dichlorobenzyl)propanoic acid (CAS 1260587-24-3)
- (R)-2-Amino-4-(2,4-dichlorophenyl)butanoic acid (CAS 1260587-52-7)
- (S)-2-Amino-4-(2,4-dichlorophenyl)butanoic acid (CAS 1260590-08-6)
- (S)-3-amino-2-(3,4-dichlorobenzyl)propanoic acid (CAS 1260593-28-9)
Recommended Standards
- (R)-2-Amino-4-(2,5-dichlorophenyl)butanoic acid (CAS 1260596-00-6)
- (S)-2-amino-4-(3,5-dichlorophenyl)butanoic acid (CAS 1260597-00-9)
- (S)-2-amino-4-(3,4-dichlorophenyl)butanoic acid (CAS 1260602-40-1)
- (R)-2-Amino-4-(2,3-dichlorophenyl)butanoic acid (CAS 1260605-14-8)
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