3-Hydroxy-2-methylbutanoic Acid CAS 473-86-9
| CAS No. | 473-86-9 |
| Molecular Formula | C5H10O3 |
| Molecular Weight | 118.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Hydroxy-2-methylbutanoic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Hydroxy-2-methylbutanoic Acid (CAS 473-86-9), molecular formula C5H10O3 and molecular weight 118.13 g/mol, is a CATO reference standard with documented purity and traceability.
3-Hydroxy-2-methylbutanoic Acid (C5H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C5H10O3 |
| Molecular Weight | 118.13 g/mol |
| Purity | >90% |
| 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) | 1.0 |
| CAS Registry Year (est.) | 1957 |
Related Hydroxy Standards
- 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)
- 3-Hydroxy-2-ethylpropionic acid (CAS 4374-62-3)
- 4-Hydroxy-2-methylbutanoic acid (CAS 81381-89-7)
- 4-Hydroxy-3-methylbutanoic acid (CAS 77220-86-1)
Recommended Standards
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- {8-methyl-1,4-dioxaspiro[4.5]decan-8-yl}methanol (CAS 24730-89-0)
- tert-Butyl (3R,4R)-4-amino-3-methylpiperidine-1-carboxylate (CAS 723308-58-5)
- (R)-1-(4-Chloro-2-fluorophenyl)ethan-1-amine hydrochloride (CAS 856562-91-9)
- (5-Fluoro-6-methoxypyridin-3-yl)methanamine (CAS 1211532-92-1)
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