8-Bromo-3-methoxy-6,7-dihydro-5H-benzo[7]annulen-9-yl acetate CAS 872857-86-8
| CAS No. | 872857-86-8 |
| Molecular Formula | C14H15BrO3 |
| Molecular Weight | 311.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 311.17 g/mol gives 8-Bromo-3-methoxy-6,7-dihydro-5H-benzo[7]annulen-9-yl acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
8-Bromo-3-methoxy-6,7-dihydro-5H-benzo[7]annulen-9-yl acetate (CAS 872857-86-8) is a high-purity analytical reference standard with the molecular formula C14H15BrO3 and a molecular weight of 311.17 g/mol.
The molecular framework of 8-Bromo-3-methoxy-6,7-dihydro-5H-benzo[7]annulen-9-yl acetate (C14H15BrO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 8-Bromo-3-methoxy-6,7-dihydro-5H-benzo[7]annulen-9-yl acetate 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 | C14H15BrO3 |
| Molecular Weight | 311.17 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 chloroform, dichloromethane, ethyl acetate, 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.) | 1987 |
| Halogen Content | Br-containing |
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Recommended Standards
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- cis-2-(4-Bromobenzoyl)cyclopentanecarboxylic acid methyl ester (CAS 791594-11-1)
- 2-Oxo-2-((3-phenylpropyl)amino)ethyl 2-(methylthio)nicotinate (CAS 728905-91-7)
- 2-((1-(2,4-Dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamide (CAS 893925-07-0)
- Oxybutynin-D11 Hydrochloride (CAS 1185151-95-4)
- rel-(2R,4S)-2-((Benzyloxy)methyl)-1-(tert-butoxycarbonyl)-4-fluoropyrrolidine-2-carboxylic acid (CAS 2763156-88-1)
- 5-(tert-Butyloxycarbonyamino)methyl-3-(4-(trifluoromethyl)phenyl)-[1,2,4]oxadiazole (CAS 1053656-56-6)
- N-(3,5-dichlorophenyl)-2-(4-methoxyphenyl)quinoline-4-carboxamide (CAS 332157-16-1)
- 4-ethynyl-1-azabicyclo[2.2.2]octane (CAS 52547-86-1)
- 8-(tert-Butoxycarbonyl)-8-azaspiro[4.5]decane-2-carboxylic acid, 97% (CAS 1160247-17-5)
- 2-(Isothiazol-3-yl)-2-methylpropanoic acid (CAS 1779983-34-4)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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