(R)-2-Amino-2-(2,3,4-trimethoxyphenyl)acetic acid CAS 1241683-97-5
| CAS No. | 1241683-97-5 |
| Molecular Formula | C11H15NO5 |
| Molecular Weight | 241.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(R)-2-Amino-2-(2,3,4-trimethoxyphenyl)acetic acid (CAS 1241683-97-5) is a high-purity analytical reference standard with the molecular formula C11H15NO5 and a molecular weight of 241.24 g/mol.
Based on its molecular formula C11H15NO5, (R)-2-Amino-2-(2,3,4-trimethoxyphenyl)acetic 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 241.24 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).
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 | C11H15NO5 |
| Molecular Weight | 241.24 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related R Standards
- (S)-2-Amino-2-(2,3,4-trimethoxyphenyl)acetic acid (CAS 1241684-00-3)
- 4-(Boc-amino)-1-methylimidazole-2-carboxylic acid, 97% (CAS 128293-64-1)
- 4-amino-1-[(2R,4R,5S)-4,5-bis(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one (CAS 132235-73-5)
- 1-Amino-4-hydroxy-2,3-dihydroanthracene-9,10-dione (CAS 144616-03-5)
- 2-Amino-3-(3,4-dimethoxyphenyl)-3-hydroxypropanoic acid (CAS 147384-58-5)
- 2-Amino-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidin-4(1H)-one (CAS 19316-88-2)
- Methyl 6-amino-2,3,4-trimethoxybenzoate (CAS 1968-72-5)
- 2-Amino-2-(2,4,5-trimethoxyphenyl)acetic acid (CAS 318270-07-4)
Recommended Standards
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- 5-(2-Acetylphenyl)picolinic acid (CAS 1242338-99-3)
- 1-(2-Methoxyphenyl)-2-(pyridin-3-yl)ethane-1,2-dione (CAS 1196154-29-6)
- 9,10-Dibromo-2,6-di(naphthalen-2-yl)anthracene (CAS 1202002-58-1)
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