1-Bromo-4-hexadecylbenzene CAS 219640-39-8
| CAS No. | 219640-39-8 |
| Molecular Formula | C22H37Br |
| Molecular Weight | 381.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C22H37Br, 1-Bromo-4-hexadecylbenzene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 381.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
1-Bromo-4-hexadecylbenzene (CAS 219640-39-8), molecular formula C22H37Br and molecular weight 381.43 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C22H37Br |
| Molecular Weight | 381.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 2,4,6-Tris(4-ethynylphenyl)-1,3,5-triazine (CAS 425629-22-7)
- [3-cyclopropyl-4-(difluoromethyl)-6-oxo-6,7-dihydro-1H-pyrazolo[3,4-b]pyridin-1-yl]acetic acid (CAS 1018142-71-6)
- 2-(2,3-dimethoxyphenyl)-2-(1H-indol-3-yl)ethan-1-amine (CAS 95426-77-0)
- 1-Chloroisoquinolin-4-amine (CAS 1260799-38-9)
- Ethyl 2-(5-methylthiophen-3-yl)acetate (CAS 1261844-84-1)
- Brinzolamide Impurity 2 (CAS CATO-C4X-19402)
- Methylene blue Impurity 16 (CAS CATO-C4X-189616)
- 2-(6-Chloropyridazin-3-yl)-2-(2,4-dichlorophenyl)acetonitrile (CAS 209412-09-9)
- 2-(4-(Ethylsulfonyl)-3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetic acid (CAS 1708269-11-7)
- 2-[(2-Chloro-6-fluorophenyl)methyl]-4-[(1E)-{[(4-chlorophenyl)methyl]imino}methyl]benzene-1,3-diol (CAS 339017-56-0)
- Tirzepatide (CAS 2023788-19-2)
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