2-Bromo-5,7,8,9-tetrahydro-6H-benzo[7]annulen-6-one CAS 740842-64-2
| CAS No. | 740842-64-2 |
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-5,7,8,9-tetrahydro-6H-benzo[7]annulen-6-one is closely related to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Bromo-5,7,8,9-tetrahydro-6H-benzo[7]annulen-6-one (CAS 740842-64-2) is a high-purity analytical reference standard with the molecular formula C11H11BrO and a molecular weight of 239.11 g/mol.
Based on its molecular formula C11H11BrO, 2-Bromo-5,7,8,9-tetrahydro-6H-benzo[7]annulen-6-one contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 239.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 2-Bromo-5,7,8,9-tetrahydro-6H-benzo[7]annulen-6-one 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.
Physical & Chemical Properties
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1986 |
| Halogen Content | Br-containing |
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Recommended Standards
- 2-Bromo-1-(3-cyclopropylphenyl)ethan-1-one (CAS 627463-23-4)
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- 3-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (CAS 87779-78-0)
- 3-Fluorophthaloyl dichloride (CAS 113770-86-8)
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- (Z)-3-Benzylidenedihydrofuran-2(3H)-one (CAS 40011-26-5)
- Fmoc-Cys(Trt)-OH (CAS 103213-32-7)
- N-Benzyl-N-methyl-2-pyridinamine-3-D (CAS 2122799-85-1)
- 3-(2-Bromophenyl)-2,2-dimethylpropan-1-ol (CAS 149080-25-1)
- 4-(5-Methoxypyridin-2-yl)oxane-4-carboxylic acid (CAS 1439899-52-1)
- 5-Amino-1-(4-bromobenzyl)-N-phenyl-1H-1,2,3-triazole-4-carboxamide (CAS 899736-66-4)
- 4-(3-Chlorobenzoyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-39-2)
- Peptide Impurity 15 (CAS 1227750-69-7)
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