Methyl (2e)-4-(4-bromophenyl)-4-oxobut-2-enoate CAS 32149-27-2
| CAS No. | 32149-27-2 |
| Molecular Formula | C11H9BrO3 |
| Molecular Weight | 269.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Methyl (2e)-4-(4-bromophenyl)-4-oxobut-2-enoate 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.
CATO supplies Methyl (2e)-4-(4-bromophenyl)-4-oxobut-2-enoate (CAS 32149-27-2), a certified reference material (molecular formula C11H9BrO3, MW 269.09 g/mol) for analytical method development and quality control.
Structurally, Methyl (2e)-4-(4-bromophenyl)-4-oxobut-2-enoate (C11H9BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 269.09 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9BrO3 |
| Molecular Weight | 269.09 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, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
Recommended Standards
- Ethyl 8-bromoimidazo[1,2-a]pyridine-6-carboxylate (CAS 957103-97-8)
- Methyl (E)-4-(2-bromophenyl)-2-oxobut-3-enoate (CAS 956476-32-7)
- Ethyl 8-bromoimidazo[1,2-a]pyridine-5-carboxylate (CAS 2090436-83-0)
- Methyl 2-(6-Bromobenzofuran-3(2H)-ylidene)acetate (CAS 2091562-32-0)
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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