(S)-2-Bromo-3-methylbutanoic acid CAS 26782-75-2
| CAS No. | 26782-75-2 |
| Molecular Formula | C5H9BrO2 |
| Molecular Weight | 181.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-2-Bromo-3-methylbutanoic acid (CAS 26782-75-2), molecular formula C5H9BrO2 and molecular weight 181.03 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, (S)-2-Bromo-3-methylbutanoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 181.03 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (S)-2-Bromo-3-methylbutanoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H9BrO2 |
| Molecular Weight | 181.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
Related S Standards
- 3-bromo-5-ethyl-1,2,4-oxadiazole (CAS 1256643-25-0)
- 3-bromo-4-fluorothiophene (CAS 133360-02-8)
- (5-bromo-1H-imidazol-2-yl)methanol (CAS 1804129-02-9)
- 4-bromo-2-methyl-pyrazol-3-ol (CAS 1935996-83-0)
- (4-bromo-1H-pyrazol-3-yl)methanol (CAS 959756-34-4)
- 2-Bromo-2-methylbutanoic acid (CAS 41242-50-6)
- 2-Bromo-3-fluorothiophene (CAS 32431-78-0)
- 2-Bromo-4-fluorothiophene (CAS 32431-65-5)
Recommended Standards
- (S)-2-(bromomethyl)-1,4-dioxane (CAS 2287191-39-1)
- (S)-2-Bromopentanoic acid (CAS 32835-74-8)
- (R)-2-bromopentanoic acid (CAS 42990-12-5)
- (S)-Ethyl 2-bromopropanoate (CAS 30365-54-9)
- γ?-MSH trifluoroacetate salt (CAS 72629-64-2)
- Isopropyl 2-amino-4-(4-propylphenyl)thiophene-3-carboxylate (CAS 351157-82-9)
- 3-Amino-5-iodobenzonitrile (CAS 49674-31-9)
- N1-(4-Methoxyphenyl)-N2-(2-methylbenzyl)oxalamide (CAS 861234-78-8)
- CAS 88525-80-8 (CAS 88525-80-8)
- tert-butyl 4-(mercaptomethyl)piperidine-1-carboxylate (CAS 581060-27-7)
- 1-Ethyl-5-fluoro-1H-indole-2-carboxylic acid (CAS 1391467-29-0)
- 1-[4-(aminomethyl)piperidin-1-yl]-2,2,2-trifluoroethan-1-one hydrochloride (CAS 1354961-00-4)
- [4-chloro-3-(trifluoromethyl)phenyl]hydrazine (CAS 91626-53-8)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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