5-Bromo-6,7,8,9-tetrahydro-5h-benzo[7]annulene CAS 128364-39-6
| CAS No. | 128364-39-6 |
| Molecular Formula | C11H13Br |
| Molecular Weight | 225.12 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 5-Bromo-6,7,8,9-tetrahydro-5h-benzo[7]annulene.
5-Bromo-6,7,8,9-tetrahydro-5h-benzo[7]annulene (CAS 128364-39-6), molecular formula C11H13Br and molecular weight 225.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H13Br, 5-Bromo-6,7,8,9-tetrahydro-5h-benzo[7]annulene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 225.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 5-Bromo-6,7,8,9-tetrahydro-5h-benzo[7]annulene 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 | C11H13Br |
| Molecular Weight | 225.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
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- 2-Methyl-N-(1-(3-methylthiophen-2-yl)ethyl)propan-1-amine (CAS 1340204-80-9)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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