4-amino-3-hydroxy-3-methylbutanoic acid hydrochloride CAS 67729-07-1
| CAS No. | 67729-07-1 |
| Molecular Formula | C5H11NO3 |
| 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.
CATO supplies 4-amino-3-hydroxy-3-methylbutanoic acid hydrochloride (CAS 67729-07-1), a certified reference material (molecular formula C5H11NO3HCl, MW 169.60 g/mol) for analytical method development and quality control.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 4-amino-3-hydroxy-3-methylbutanoic acid hydrochloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 169.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C5H11NO3 HCl |
| Molecular Weight | 169.60 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.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3-Bromo-5-chlorobenzamide (CAS 933671-77-3)
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- Dapagliflozin Impurity 197 (CAS CATO-C4X-1138197)
- tert-Butyl 4-(4-amino-5-methoxy-2-methylphenyl)piperazine-1-carboxylate (CAS 1390657-49-4)
- 1065004-53-6 17-{(2E)-3,3-Dimethyl-2-[(2E)-3-(1,3,3-trimethyl-3H-indol-1-ium-2-yl)prop-2-en-1-ylidene]-2,3-dihydro-1H-indol-1-yl}-13-oxo-6,9-dioxa-3,12-diazaheptadecan-1-yl alpha-D-threo-hexopyranoside DTXSID30747850 (CAS 1065004-53-6)
- N,N'-(Sulfonylbis(4,1-phenylene))bis(2,2,3,3-tetramethylcyclopropane-1-carboxamide) (CAS 329059-55-4)
- 2-(4-Nitropyridin-2-yl)acetonitrile (CAS 415912-71-9)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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