1,4-Bis(2-bromoethyl)benzene CAS 4542-72-7
| CAS No. | 4542-72-7 |
| Molecular Formula | C10H12Br2 |
| Molecular Weight | 292.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,4-Bis(2-bromoethyl)benzene (CAS 4542-72-7), a certified reference material (molecular formula C10H12Br2, MW 292.01 g/mol) for analytical method development and quality control.
Structurally, 1,4-Bis(2-bromoethyl)benzene (C10H12Br2) contains bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 292.01 g/mol, it falls into the medium-molecular-weight range. 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 | C10H12Br2 |
| Molecular Weight | 292.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Related Bis Standards
- 4-(2-Bromoethyl)-N,N-dimethylbenzenesulfonamide (CAS 874523-27-0)
- 1-Boc-4-(2-bromoethyl)piperidine (CAS 169457-73-2)
- 4-(2-Bromoethyl)-4'-methoxy-1,1'-biphenyl (CAS 725227-93-0)
- 5-(2-Bromoethyl) 3-ethyl 3H-pyrazole-3,5-dicarboxylate (CAS 88202-93-1)
- 1-(2-Bromoethyl)-4-Boc-piperazine (CAS 655225-01-7)
- 2-(2-Bromoethyl)-2,3-dihydro-1,2-benzothiazole-1,1,3-trione (CAS 7248-71-7)
- 2,2-Bis(bromoethyl)-1,3-propanediol (CAS 34549-30-9)
- Ethyl 2-(3-(2-bromoethyl)-4-oxothiazolidin-2-ylidene)acetate (CAS 92503-35-0)
Recommended Standards
- 1,3-Dibromo-5-isopropyl-2-methylbenzene (CAS 2624417-82-7)
- 1,4-Bis(bromomethyl)-2,5-dimethylbenzene (CAS 35168-62-8)
- 1,2-Dibromo-4-tert-butylbenzene (CAS 6683-75-6)
- 1,4-Dibromo-2,5-diethylbenzene (CAS 40787-48-2)
- 6-Bromo-5-fluoro-3-iodo-1-methyl-1H-indazole (CAS 1286734-96-0)
- 2-(m-Tolyloxy)ethanethioamide (CAS 35370-82-2)
- (S)-5-(2-Hydroxyethyl)pyrrolidin-2-one (CAS 808172-50-1)
- 3,3,3-Trifluoro-N-(o-tolyl)propanimidoyl chloride (CAS 70314-81-7)
- 3-(4-Methyl-3-nitro-1h-pyrazol-1-yl)butanoic acid (CAS 1342234-30-3)
- 4-Amino-1-methyl-5-(thiophen-2-yl)pyrrolidin-2-one (CAS 1310079-23-2)
- 2-Hydroxy-N-[4-(trifluoromethyl)phenyl]acetamide (CAS 926257-28-5)
- 2-((4-Amino-5-methyl-4H-1,2,4-triazol-3-yl)thio)-N-phenylacetamide (CAS 325994-74-9)
- 5-Phenyl-6-(propylamino)pyrazine-2,3-dicarbonitrile (CAS 72113-09-8)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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