2-(Aminooxy)-2-methylpropanoic acid hydrochloride CAS 89766-91-6
| CAS No. | 89766-91-6 |
| Molecular Formula | C4H9NO3 |
| Molecular Weight | N/A |
| 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.
2-(Aminooxy)-2-methylpropanoic acid hydrochloride (CAS 89766-91-6), molecular formula C4H9NO3HCl and molecular weight 155.58 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H9NO3HCl, 2-(Aminooxy)-2-methylpropanoic acid hydrochloride contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 155.58 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.
Physical & Chemical Properties
| Molecular Formula | C4H9NO3 HCl |
| Molecular Weight | 155.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 1-(3,5-bis(trifluoromethyl)phenyl)-3-((4-methoxyphenyl)methyl)thiourea (CAS 13795-11-4)
- 4-Bromo-3-(difluoromethyl)-6-iodopicolinoyl chloride (CAS 1806913-26-7)
- 2,7-Dimethylpyrazolo[1,5-a]pyridine-3-carboxylic acid (CAS 143803-85-4)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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