(2S)-2-Hydroxy-2-methyl-3-oxobutanoic acid CAS 71698-08-3
| CAS No. | 71698-08-3 |
| Molecular Formula | C5H8O4 |
| Molecular Weight | 132.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H8O4, (2S)-2-Hydroxy-2-methyl-3-oxobutanoic acid contains a carbohydrate-derived structure; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 132.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
(2S)-2-Hydroxy-2-methyl-3-oxobutanoic acid (CAS 71698-08-3) is a high-purity analytical reference standard with the molecular formula C5H8O4 and a molecular weight of 132.11 g/mol.
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.
As a certified reference material (CRM), (2S)-2-Hydroxy-2-methyl-3-oxobutanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H8O4 |
| Molecular Weight | 132.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1977 |
Related S Standards
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- 4,6 diamino-5-formamide pyrimidine HCl (CAS 5122-36-1（free base）)
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- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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