(R)-2-Amino-2-(4-methoxyphenyl)ethanol hydrochloride CAS 221697-18-3
| CAS No. | 221697-18-3 |
| Molecular Formula | C9H13NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-2-Amino-2-(4-methoxyphenyl)ethanol hydrochloride (CAS 221697-18-3), molecular formula C9H13NO2HCl and molecular weight 203.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H13NO2HCl, (R)-2-Amino-2-(4-methoxyphenyl)ethanol hydrochloride contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.67 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.
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.
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 | C9H13NO2 HCl |
| Molecular Weight | 203.67 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related R Standards
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Recommended Standards
- 6-Bromo-7-fluoroquinoline (CAS 127827-52-5)
- 5-Amino-1-(2-((2,4-dimethoxyphenyl)amino)-2-oxoethyl)-1H-1,2,3-triazole-4-carboxamide (CAS 901046-40-0)
- 8-Methyl-8-azabicyclo[3.2.1]octan-1-ol (CAS 60723-27-5)
- 6,6-Difluorobicyclo[3.1.0]hexan-3-amine (CAS 1393541-13-3)
- Sildenafil Impurity 266 (CAS CATO-C4X-1128266)
- Barnidipine Impurity 1 (CAS CATO-C4X-27561)
- (E,E)-Farnesyl Thioacetate (CAS 340701-35-1)
- Ethyl 3'-(aminomethyl)-[1,1'-biphenyl]-4-carboxylate (CAS 479645-82-4)
- 890100-37-5 4-(3,5-Dimethylbenzoyl)phenyl acetate DTXSID10641746 (CAS 890100-37-5)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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