1,3,5-Tribromo-2-(ethenyloxy)benzene CAS 3748-03-6
| CAS No. | 3748-03-6 |
| Molecular Formula | C8H5Br3O |
| Molecular Weight | 356.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 356.84 g/mol gives 1,3,5-Tribromo-2-(ethenyloxy)benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,3,5-Tribromo-2-(ethenyloxy)benzene (CAS 3748-03-6), molecular formula C8H5Br3O and molecular weight 356.84 g/mol, is a CATO reference standard with documented purity and traceability.
1,3,5-Tribromo-2-(ethenyloxy)benzene (C8H5Br3O) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H5Br3O |
| Molecular Weight | 356.84 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1958 |
| Halogen Content | Br-containing |
Related Tribromo Standards
- 1,2,5-Tribromo-3-isopropylbenzene (CAS 2404733-81-7)
- 1,3,5-Tribromo-2,4,6-trimethylbenzene (CAS 608-72-0)
- 1,3,5-Tribromo-2-methoxy-4-methylbenzene (CAS 41424-36-6)
- 4,6,7-Tribromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-89-8)
- 1,2,3-Tribromo-5-nitrobenzene (CAS 3460-20-6)
- 1,2,4-Tribromo-5-nitrobenzene (CAS 89365-48-0)
- 1,3,5-Tribromo-2-nitrobenzene (CAS 3463-40-9)
- 2,3,5-Tribromo-6-ethoxypyridine (CAS 887571-04-2)
Recommended Standards
- (S)-Ethyl 2-(1-((tert-butoxycarbonyl)amino)-2-methylpropyl)-5-chloronicotinate (CAS 916986-33-9)
- 2,2-Dibromo-1-(3-bromophenyl)ethan-1-one (CAS 98042-29-6)
- 162747-64-0 4-[6-Acetyl-3-(3-chloropropoxy)-2-propylphenoxy]butanoic acid (CAS 162747-64-0)
- 2-Bromo-1-(2,4-dibromophenyl)ethanone (CAS 60208-07-3)
- 2-{4-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl}acetaldehyde (CAS 1557547-03-1)
- 5-Bromo-2-methyl-1H-pyrrolo[2,3-b]pyridin-6-amine (CAS 1352396-99-6)
- 1-(2-Iodothiophen-3-yl)ethan-1-one (CAS 1956371-36-0)
- Oxymetazoline impurity 9 (CAS CATO-C4X-17239)
- ethyl 2-methyl-3-(pyridin-2-yl)prop-2-enoate (CAS 1175087-38-3)
- 2-(Boc-amino)-4-(aminomethyl)pyridine (CAS 639091-78-4)
- H-Lys-Leu-OH (CAS 7369-79-1)
- (2-((3R,5R)-3,5-Dihydroxycyclohexylidene)ethyl)diphenylphosphine oxide (CAS 883214-91-3)
- 5-(Chloromethyl)-3-(4-methylphenyl)-1,2,4-oxadiazole (CAS 50737-29-6)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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