8-Bromo-1-methyl-1,2,3,4-tetrahydronaphthalene CAS 1783381-98-5
| CAS No. | 1783381-98-5 |
| Molecular Formula | C11H13Br |
| Molecular Weight | 225.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to bromine substitution, an aromatic ring system, 8-Bromo-1-methyl-1,2,3,4-tetrahydronaphthalene is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 225.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 8-Bromo-1-methyl-1,2,3,4-tetrahydronaphthalene (CAS 1783381-98-5), a certified reference material (molecular formula C11H13Br, MW 225.12 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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.) | 1994 |
| Halogen Content | Br-containing |
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- 3-Hydroxy-2-phenylchroman-4-one (CAS 1621-55-2)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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