(2E)-3-Bromo-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid sodium salt CAS 21739-91-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21739-91-3 |
| Molecular Formula | C11H8BrO4 Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2E)-3-Bromo-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid sodium salt (CAS 21739-91-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C11H8BrO4 Na. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C11H8BrO4 Na |
| Molecular Weight | 307.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
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Recommended Standards
- 2-Amino-N-methyl-N-((5-methylisoxazol-3-yl)methyl)butanamide (CAS 1218573-42-2)
- Ethyl 4-benzylbenzoate (CAS 18908-74-2)
- 3-Fluoro-6-methoxy-2-(trifluoromethyl)pyridine (CAS 1227564-54-6)
- (2e)-3-[4-(2-methylpropyl)phenyl]prop-2-enoic acid (CAS 1415604-30-6)
- Methyl 4-fluorobicyclo[2.2.1]heptane-1-carboxylate (CAS 84553-41-3)
- (3-Chloro-2-fluorobenzyl)hydrazine (CAS 1000805-97-9)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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