2-Hydroxy-3-methylbutanoic acid CAS 4026-18-0
| CAS No. | 4026-18-0 |
| Molecular Formula | C5H10O3 |
| Molecular Weight | 118.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Hydroxy-3-methylbutanoic acid (CAS 4026-18-0) is a high-purity analytical reference standard with the molecular formula C5H10O3 and a molecular weight of 118.13 g/mol.
The molecular framework of 2-Hydroxy-3-methylbutanoic acid (C5H10O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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 | >95% |
| 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.) | 1958 |
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
- beta-Hydroxyisovaleric Acid (CAS 625-08-1)
- Ethyl Methoxyacetate (CAS 3938-96-3)
- Methyl 2-Hydroxyisobutyrate (CAS 2110-78-3)
- 3-Hydroxypentanoic acid (CAS 10237-77-1)
- Sodium 2,6-dinitro-4-(trifluoromethyl)benzenesulfonate (CAS 54495-25-9)
- 2-Oxo-5-(quinolin-4-yl)-1,2-dihydropyridine-3-carboxylic acid (CAS 90632-09-0)
- N-methyl-1-(2-methylisoindolin-5-yl)methanamine (CAS 959237-27-5)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((4-cyclohexyl-5-(2,4-dichlorophenyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 764692-22-0)
- 1-(3-Bromobenzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1338688-48-4)
- 1-Bromo-3-methyl-5-(trifluoromethoxy)benzene (CAS 887266-91-3)
- 4-Amino-1-methylpyrazole-3-carbonitrile (CAS 1201935-84-3)
- Tert-butyl 6-hydrazinyl-2-azaspiro[3.3]Heptane-2-carboxylate (CAS 2168698-12-0)
- 5-(3,4-Dimethylphenyl)-1,3,4-oxadiazole-2-thiol (CAS 108413-56-5)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com