(E)-3-(2-Bromophenyl)acrylic acid CAS 7345-79-1
| CAS No. | 7345-79-1 |
| Molecular Formula | C9H7BrO2 |
| Molecular Weight | 227.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, (E)-3-(2-Bromophenyl)acrylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 227.05 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.
(E)-3-(2-Bromophenyl)acrylic acid (CAS 7345-79-1) is a high-purity analytical reference standard with the molecular formula C9H7BrO2 and a molecular weight of 227.05 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (E)-3-(2-Bromophenyl)acrylic acid 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.
Physical & Chemical Properties
| Molecular Formula | C9H7BrO2 |
| Molecular Weight | 227.05 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 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
Related E Standards
- 1-(4-Bromophenyl)propane-1,2-dione (CAS 10557-20-7)
- 2-(2-Bromophenyl)propanedial (CAS 1057670-77-5)
- 3-(4-Bromophenyl)-3-oxopropanal (CAS 14153-75-4)
- (E)-3-(3-Bromophenyl)acrylic acid (CAS 14473-91-7)
- (E)-3-(4-bromophenyl)acrylic acid (CAS 17916-60-8)
- 2-(3-Bromophenyl)malondialdehyde (CAS 791809-62-6)
- 2-(4-Bromophenyl)acrylic acid (CAS 28131-17-1)
- 2-(4-Bromophenyl)propanedial (CAS 709648-68-0)
Recommended Standards
- (7-Bromobenzofuran-5-yl)methanol (CAS 286836-24-6)
- (1R,2R,3R,4S,5R,6S,7S,8S)-4-bromocubane-1-carboxylic acid (CAS 37794-29-9)
- Methyl 2-bromo-3,3-dimethoxypropanoate (CAS 191330-98-0)
- 8-Bromochroman-2-one (CAS 1897874-11-1)
- (E)-1-chloro-3-bromo-1-propene (CAS 67546-50-3)
- Ethyl 8-isopropyl-4-thioxo-1,4-dihydroquinoline-3-carboxylate (CAS 1279202-43-5)
- 2-Methyl-1-(1-methyl-1H-pyrazol-4-yl)pentane-1,3-dione (CAS 1007519-59-6)
- 6,8-Dichloro-N-(3-fluoropyridin-4-yl)imidazo[1,2-b]pyridazine-3-carboxamide (CAS 1177415-97-2)
- 4-(Aminomethyl)-5-cyano-2-ethylbenzene-1-sulfonyl chloride (CAS 1805394-90-4)
- 1-(3-Methoxyisoxazol-5-yl)propan-1-one (CAS 54258-29-6)
- Dutasteride EP Impurity A (CAS 104239-97-6)
- (2S,4S)-1-(tert-butoxycarbonyl)-4-(2-ethoxyphenoxy)pyrrolidine-2-carboxylic acid (CAS 869682-12-2)
- 4-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholin-4-ium tetrafluoroborate (CAS 293311-03-2)
- Peptide 432 (CAS CATO-CPTD788432)
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