(E)-3-(4-Bromophenyl)-3-chloroacrylaldehyde CAS 161891-31-2
| CAS No. | 161891-31-2 |
| Molecular Formula | C9H6BrClO |
| Molecular Weight | 245.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (E)-3-(4-Bromophenyl)-3-chloroacrylaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
(E)-3-(4-Bromophenyl)-3-chloroacrylaldehyde (CAS 161891-31-2), molecular formula C9H6BrClO and molecular weight 245.50 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, (E)-3-(4-Bromophenyl)-3-chloroacrylaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 245.50 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.
Physical & Chemical Properties
| Molecular Formula | C9H6BrClO |
| Molecular Weight | 245.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl/Br-containing |
Related E Standards
- 3-(2-Bromophenyl)acryloyl chloride (CAS 119411-68-6)
- (2E)-3-(4-Bromophenyl)acryloyl chloride (CAS 13565-09-8)
- 3-(4-Bromophenyl)-3-chloroacrylaldehyde (CAS 14063-78-6)
- (2Z)-3-(4-Bromophenyl)-3-chloroacrylaldehyde (CAS 161891-32-3)
- (2E)-3-(2-Bromophenyl)acryloyl chloride (CAS 851664-10-3)
- 3-(4-Bromophenyl)-2-propenoyl chloride (CAS 27465-66-3)
- (4-Bromophenyl)(methoxy)dimethylsilane (CAS 17021-92-0)
- (3-Bromophenyl)(tert-butyl)sulfane (CAS 135883-40-8)
Recommended Standards
- 3-Bromo-5-chloro-1-methyl-1H-pyrrolo[2,3-c]pyridine (CAS 1501153-37-2)
- 5-Bromo-6-chloro-3-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1463441-04-4)
- 3-Bromo-6-chloro-1-methyl-1H-pyrrolo[3,2-b]pyridine (CAS 1620098-37-4)
- 6-Bromo-7-chloro-2-methyl-1H-benzo[d]imidazole (CAS 1446412-93-6)
- 3-(5-(2,3-Dichlorophenyl)furan-2-yl)-2-phenylacrylonitrile (CAS 304896-40-0)
- 4-chloro-3-(1,1-dioxo-1$l^{6},2-thiazolidin-2-yl)benzoic acid (CAS 1016508-33-0)
- 1-(2-Chloroethyl)piperazine dihydrochloride (CAS 53502-60-6)
- 2-Amino-N-(4-methyl-2-oxo-2H-chromen-7-yl)acetamide hydrochloride (CAS 208459-17-0)
- 8-Chloro-2-(trifluoromethyl)quinoline (CAS 1823887-29-1)
- (E)-8-Bromoquinoxaline-5-carbaldehyde oxime (CAS 2101944-51-6)
- 4-((4-Chlorophenyl)sulfonyl)-2-(2-fluorophenyl)-N-(3-methoxypropyl)oxazol-5-amine (CAS 823829-89-6)
- 3,5-Dimethyl-5-(piperidin-3-yl)imidazolidine-2,4-dione (CAS 1384510-57-9)
- Dimethylthiophene-3,4-dicarbonitrile (CAS 287096-97-3)
- Sperm Peptide P10G (H-2424.0001) (CAS 137353-73-2)
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