(R)-3-Hydroxy-2-oxobutanoic acid CAS 68862-42-0
| CAS No. | 68862-42-0 |
| Molecular Formula | C4H6O4 |
| Molecular Weight | 118.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 118.09 g/mol gives (R)-3-Hydroxy-2-oxobutanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(R)-3-Hydroxy-2-oxobutanoic acid (CAS 68862-42-0), molecular formula C4H6O4 and molecular weight 118.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carbohydrate-derived structure, (R)-3-Hydroxy-2-oxobutanoic acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 118.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (R)-3-Hydroxy-2-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 | C4H6O4 |
| Molecular Weight | 118.09 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.) | 1976 |
Related R Standards
- 4-Hydroxy-3-oxobutanoic acid (CAS 162369-88-2)
- 3-Hydroxy-2-oxobutanoic acid (CAS 1944-42-9)
- 4-Hydroxy-2-oxobutanoic acid (CAS 22136-38-5)
- N’-hydroxy-2-methoxypropanimidamide (CAS 1251430-35-9)
- 3-Hydroxy-2-(hydroxymethyl)-2-methylpropanal (CAS 18516-18-2)
- (R)-2-Hydroxy-2-methylbutanoic acid (CAS 37505-02-5)
- (S)-2-Hydroxy-2-methylbutanoic acid (CAS 37505-07-0)
- 2-Hydroxy-2-methylpropanehydrazide (CAS 42596-46-3)
Recommended Standards
- 1,3,4-oxadiazole-2-carboxylic acid (CAS 944907-12-4)
- Rel-(3R,4R)-3,4-dihydroxydihydrofuran-2(3H)-one (CAS 17675-99-9)
- 1,3-Dioxolane-2-carboxylic acid (CAS 5736-05-0)
- 1-Methyl-1-nitroguanidine (CAS 62409-38-5)
- 4,5,6-trifluoroindole (CAS 884494-65-9)
- 1-Methyl-1H-indazole-6-methanamine (CAS 267413-31-0)
- 3-(2-Methoxyphenyl)-2-thioxothiazolidin-4-one (CAS 56676-49-4)
- 4-(1-Amino-2,2,2-trifluoroethyl)benzoic acid (CAS 886368-22-5)
- 4,6-Di-tert-butylbenzo[d][1,3]dioxole (CAS 29619-33-8)
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