3-Bromo-7-methyl-6,7,8,9-tetrahydro-5h-benzo[7]annulen-5-one CAS 1341679-77-3
| CAS No. | 1341679-77-3 |
| Molecular Formula | C12H13BrO |
| Molecular Weight | 253.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Bromo-7-methyl-6,7,8,9-tetrahydro-5h-benzo[7]annulen-5-one.
3-Bromo-7-methyl-6,7,8,9-tetrahydro-5h-benzo[7]annulen-5-one (CAS 1341679-77-3), molecular formula C12H13BrO and molecular weight 253.14 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-7-methyl-6,7,8,9-tetrahydro-5h-benzo[7]annulen-5-one (C12H13BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 3-Bromo-7-methyl-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 | C12H13BrO |
| Molecular Weight | 253.14 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.) | 1991 |
| Halogen Content | Br-containing |
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- 1079-43-2 2-(5-bromo-2-methyl-1H-indol-3-yl)ethanamine T7146 (CAS 1079-43-2)
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Recommended Standards
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- 2-Bromo-6-(isobutylamino)benzonitrile (CAS 1365272-49-6)
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- 2-((4-Methoxyphenyl)thio)acetic acid (CAS 3406-77-7)
- (6-(Difluoromethyl)-2-fluoropyridin-3-yl)methanol (CAS 1806045-30-6)
- Biapenem Impurity 21 (CAS 153851-71-9)
- (4E)-4-[2-(4-Fluorophenyl)hydrazin-1-ylidene]-3,4-dihydro-1H-2-benzopyran-1,3-dione (CAS 339021-15-7)
- Gibberellin Acid (GA3)-d2 (CAS 120396-36-3)
- 5-Methoxyquinoxalin-2-ol (CAS 76052-79-4)
- 3-(Tert-butyl)-4-methyl-1H-pyrazol-5-amine (CAS 159976-74-6)
- β-Asp9-Tirzepatide (CAS CATO-CPTD788931)
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