1-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one CAS 87779-79-1
| CAS No. | 87779-79-1 |
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (C11H11BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 239.11 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 1-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (CAS 87779-79-1), a certified reference material (molecular formula C11H11BrO, MW 239.11 g/mol) for analytical method development and quality control.
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), 1-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one 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 | 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.) | 1982 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
- 1-Bromo-4-(1-(prop-2-yn-1-yloxy)ethyl)benzene (CAS 66398-69-4)
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- 2-(2-Bromophenyl)-1-cyclopropylethanone, 97% (CAS 952722-66-6)
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- Henicosa-6,9,12,15,18-pentaynoic acid (CAS 1797024-23-7)
- 3-Bromo-4,5-difluoroaniline (CAS 875664-41-8)
- 2-(Tetrahydrofuran-2-yl)ethan-1-amine hydrochloride (CAS 1240527-33-6)
- Opicapone Impurity 46 (CAS CATO-C4X-240446)
- (R)-tert-Butyl 1-(2-fluorobenzyl)pyrrolidin-3-ylcarbamate (CAS 876162-21-9)
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- 4-(Methylsulfonamidomethyl)-N-(thiophen-2-ylmethyl)cyclohexane-1-carboxamide (CAS 1202971-14-9)
- [3,5 Diiodo-Tyr7] Peptide T (CAS 128551-40-6)
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