1,4-Dibromo-2,5-bis(octyloxy)benzene CAS 56028-40-9
| CAS No. | 56028-40-9 |
| Molecular Formula | C22H36Br2O2 |
| Molecular Weight | 492.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1,4-Dibromo-2,5-bis(octyloxy)benzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 1,4-Dibromo-2,5-bis(octyloxy)benzene (CAS 56028-40-9), a certified reference material (molecular formula C22H36Br2O2, MW 492.33 g/mol) for analytical method development and quality control.
Structurally, 1,4-Dibromo-2,5-bis(octyloxy)benzene (C22H36Br2O2) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. 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 492.33 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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.) | 1973 |
| 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((2-ethylhexyl)oxy)benzene (CAS 191867-85-3)
- 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)
- 3-(3,5-Dibromo-2-ethoxyphenyl)-6-ethoxy-[1,2,4]triazolo[3,4-a]phthalazine (CAS 87540-53-2)
Recommended Standards
- 9,9-Di(6-bromohexyl)fluorene (CAS 269059-34-9)
- 9,9-Dihexyl-2,7-dibromofluorene (CAS 189367-54-2)
- 2,3,8,9,14,15-Hexafluorodiquinoxalino[2,3-a:2',3'-c]phenazine (CAS 872140-95-9)
- 12-Amino-10-(4-bromophenyl)-8-oxo-4-(phenylamino)-13-oxa-3-thia-5,7-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),2(6),4,11-tetraene-11-carbonitrile (CAS 674806-65-6)
- 2,4,6-Tris(4-fluorophenyl)phosphinine (CAS 62496-86-0)
- Methyl o-tolylcarbamate (CAS 14983-92-7)
- 3,4-Diamino-N-(3-(trifluoromethyl)phenyl)benzenesulfonamide (CAS 380349-00-8)
- Malonic Acid (CAS 141-82-2)
- Alpha-bromo-3'-acetoxyacetophenone (CAS 38396-89-3)
- (5-Chloro-2-methoxypyridin-4-yl)methanamine (CAS 924706-99-0)
- 2-(1-(Phenylthio)cyclopropyl)but-3-en-2-ol (CAS 41596-96-7)
- 11-bromo-2-hydroxy-1,7-diazatricyclo[7.3.0.0²,⁶]dodeca-9,11-dien-8-one (CAS 2864345-70-8)
- 3-Cyclohexylazetidin-3-ol (CAS 1225439-06-4)
- Tetrapeptide-3 (CAS 827306-97-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com