6,7-Dibromo-1,1,4,4-tetramethyl-1,2,3,4-tetrahydronaphthalene CAS 184885-74-3
| CAS No. | 184885-74-3 |
| Molecular Formula | C14H18Br2 |
| Molecular Weight | 346.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H18Br2, 6,7-Dibromo-1,1,4,4-tetramethyl-1,2,3,4-tetrahydronaphthalene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 346.10 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).
6,7-Dibromo-1,1,4,4-tetramethyl-1,2,3,4-tetrahydronaphthalene (CAS 184885-74-3), molecular formula C14H18Br2 and molecular weight 346.10 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C14H18Br2 |
| Molecular Weight | 346.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 2009 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 4,5-Dibromo-1-(methoxymethyl)-2-phenyl-1H-imidazole (CAS 159589-94-3)
- 2,7-Dibromo-3,6-dimethoxynaphthalene (CAS 105404-89-5)
- 1,5-Dibromo-2,6-dimethoxynaphthalene (CAS 25315-06-4)
- 1,5-Dibromo-4,8-dimethoxynaphthalene (CAS 88818-38-6)
- 1,6-Dibromo-2,7-dimethoxynaphthalene (CAS 4614-12-4)
- 2,6-Dibromo-1,5-dimethoxynaphthalene (CAS 91394-96-6)
- 4,9-Dibromo-[1,2,5]thiadiazolo[3,4-g]quinoxaline (CAS 141215-31-8)
- 2,2-DIBROMO-1-(4-FLUORONAPHTHALEN-1-YL)ETHANONE (CAS 951-04-2)
Recommended Standards
- (3-Bromo-4-(trifluoromethoxy)phenyl)(pyridin-4-yl)methanone (CAS 1261882-20-5)
- 2-((4-Bromo-2-fluorophenyl)amino)-3,4-difluorobenzoic acid (CAS 391212-04-7)
- (5-Bromo-2-(trifluoromethoxy)phenyl)(pyridin-4-yl)methanone (CAS 1261805-90-6)
- 2,6-Dibromodecahydro-2,8,4,6-(epibutane[1,2,3,4]tetrayl)naphthalene (CAS 30651-02-6)
- N-(Benzo[d][1,3]dioxol-5-ylmethylene)pyrimidin-2-amine (CAS 882866-10-6)
- 6-Isopropyl-2-(5-nitrofuran-2-carboxamido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride (CAS 1177882-31-3)
- 5-Bromo-2-chloro-3-(dimethoxymethyl)pyridine (CAS 928653-74-1)
- 1-Methyl-4-[4-(1,2-oxazol-5-yl)phenyl]piperazine (CAS 240115-80-4)
- (R)-1-(5-Chloro-2-ethoxyphenyl)ethan-1-ol (CAS 1406161-92-9)
- 5-Cyclopropoxy-N,N-dimethyl-6-(methylamino)nicotinamide (CAS 1243328-78-0)
- 2-(6,7-Diethoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)acetonitrile (CAS 170306-62-4)
- 1-(6-Chloro-2-fluoro-3-methylphenyl)ethan-1-one (CAS 261762-78-1)
- 4-Phenylpyrimidine-2-carboxamide (CAS 1491142-16-5)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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