2-Bromo-5,6,8,9-tetrahydro-7H-benzo[7]annulen-7-one CAS 1180671-71-9
| CAS No. | 1180671-71-9 |
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Bromo-5,6,8,9-tetrahydro-7H-benzo[7]annulen-7-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.
CATO supplies 2-Bromo-5,6,8,9-tetrahydro-7H-benzo[7]annulen-7-one (CAS 1180671-71-9), a certified reference material (molecular formula C11H11BrO, MW 239.11 g/mol) for analytical method development and quality control.
Owing to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2-Bromo-5,6,8,9-tetrahydro-7H-benzo[7]annulen-7-one is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 239.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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.) | 1989 |
| Halogen Content | Br-containing |
Related Bromo Standards
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- 1-Bromo-3-(propan-2-yl)imidazo[1,5-a]pyridine (CAS 1018665-45-6)
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Recommended Standards
- 2-(3-Nitro-5-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid (CAS 1174882-24-6)
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- 2-(5-Nitro-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid (CAS 1174870-62-2)
- 4-Bromo-2,2-dimethyl-2,3-dihydro-1H-inden-1-one (CAS 1188231-66-4)
- 7-Methoxy-9-methylphenazine-1-carboxylic acid (CAS 83297-77-2)
- 6-Amino-5-methoxypicolinonitrile (CAS 1805928-77-1)
- 2-Phenylpyrimidine-5-carboxylic Acid (CAS 122773-97-1)
- 1-(1,5-Dimethyl-1H-pyrazol-4-yl)-N-((tetrahydrofuran-2-yl)methyl)methanamine hydrochloride (CAS 1856044-02-4)
- (S)-3-Cyclobutylmorpholine (CAS 1270063-87-0)
- 2-{4-[(dimethylamino)methyl]piperidin-1-yl}aniline (CAS 1274732-71-6)
- Z-Val-Trp-OMe (CAS 17430-65-8)
- 1-methyl-1H-pyrazolo[3,4-b]pyridin-4-amine (CAS 1798748-91-0)
- TG6-129, >98% (HPLC) (CAS 1164464-14-5)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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