1,4-Dibromo-2,5-bis((2-ethylhexyl)oxy)benzene CAS 191867-85-3
| CAS No. | 191867-85-3 |
| Molecular Formula | C22H36Br2O2 |
| Molecular Weight | 492.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,4-Dibromo-2,5-bis((2-ethylhexyl)oxy)benzene (CAS 191867-85-3) is a high-purity analytical reference standard with the molecular formula C22H36Br2O2 and a molecular weight of 492.33 g/mol.
Owing to a steroid core, a hydroxyl group, an ether linkage, bromine substitution, 1,4-Dibromo-2,5-bis((2-ethylhexyl)oxy)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 492.33 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).
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 | C22H36Br2O2 |
| Molecular Weight | 492.33 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, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 1,2-Dibromo-4,5-bis(octyloxy)benzene (CAS 118132-04-0)
- 1,4-Dibromo-2,5-bis(octyloxy)benzene (CAS 56028-40-9)
- 4,5-dibromo-2,7-di-tert-butyl-9,9-dimethylxanthene (CAS 130525-43-8)
- 5,5'-Dibromo-3,3'-dihexyl-2,2'-bithiophene (CAS 170702-05-3)
- 5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene (CAS 214493-03-5)
- 11-(3,5-Dibromo-4-hydroxyphenyl)-3,3-dimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (CAS 1024228-08-7)
- 2-({2-[2-(2,4-Dibromo-6-methylphenoxy)acetyl]hydrazino}carbonyl)cyclohexanecarboxylic acid (CAS 897139-41-2)
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Recommended Standards
- 9,9-Dihexyl-2,7-dibromofluorene (CAS 189367-54-2)
- 9,9-Di(6-bromohexyl)fluorene (CAS 269059-34-9)
- 1-([1,1'-Biphenyl]-4-ylmethyl)-4,6-difluoro-5-iodo-2-(methylthio)-1h-benzo[d]imidazole (CAS 1219741-32-8)
- 2,3,8,9,14,15-Hexafluorodiquinoxalino[2,3-a:2',3'-c]phenazine (CAS 872140-95-9)
- Glutaryl-Phe-AMC (CAS 58632-47-6)
- 5-bromo-3-(bromomethyl)furan-2-carboxylic acid (CAS 2385341-97-7)
- N-[6-Amino-1,2,3,4-tetrahydro-1-(2-methylpropyl)-2,4-dioxo-5-pyrimidinyl]-2-chloro-N-(2-methylpropyl)acetamide (CAS 565180-48-5)
- n-(3-Methoxypropyl)adamantane-1-carboxamide (CAS 332037-28-2)
- 3-((6-Nitrobenzo[d][1,3]dioxol-5-yl)methylene)dihydrofuran-2(3H)-one (CAS 92722-46-8)
- 1-(5-Ethoxy-2-hydroxyphenyl)ethan-1-one (CAS 56414-14-3)
- 4-Amino-2-fluoro-N-(1-methyl-4-piperidyl)benzamide (CAS 957855-54-8)
- 9-(1H-pyrrol-1-yl)-2,4-bis(trifluoromethyl)-[1,2,4]triazolo[4,3-a][1,8]naphthyridine (CAS 338965-34-7)
- (4-Heptylphenyl)(6-methoxypyridin-2-yl)methanone (CAS 1187171-40-9)
- Des-Leu14-Tirzepatide (CAS CATO-CPTD788959)
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