1,4-Bis(4-bromobutoxy)benzene CAS 66619-91-8
| CAS No. | 66619-91-8 |
| Molecular Formula | C14H20Br2O2 |
| Molecular Weight | 380.12 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.
CATO supplies 1,4-Bis(4-bromobutoxy)benzene (CAS 66619-91-8), a certified reference material (molecular formula C14H20Br2O2, MW 380.12 g/mol) for analytical method development and quality control.
The molecular framework of 1,4-Bis(4-bromobutoxy)benzene (C14H20Br2O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H20Br2O2 |
| Molecular Weight | 380.12 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.) | 1976 |
| Halogen Content | Br-containing |
Related Bis Standards
- 1-(4-Bromobutoxy)-2-iodobenzene (CAS 949495-02-7)
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- (S)-3-(4-(4-bromobutoxy)phenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid (CAS 1579942-12-3)
- 4-(4-Bromobutoxy)-4'-methoxy-1,1'-biphenyl (CAS 130474-47-4)
- [4-(4-Bromobutoxy)phenyl]-phenylmethanone (CAS 101308-54-7)
- 4-(4-Bromobutoxy)benzenesulfonyl chloride (CAS 1375453-68-1)
- 4-(4-Bromobutoxy)benzenesulfonamide (CAS 130840-22-1)
- 7-(4-Bromobutoxy)-3,4-dihydroquinolin-2-one-d8 (CAS 1215336-46-1)
Recommended Standards
- 2,7-Dibromo-9,9-diethyl-9H-fluorene (CAS 197969-58-7)
- 35578-47-3 O4TXV8A656 4,4'-Dibromobenzil Bis(4-bromophenyl)ethanedione 1,2-Ethanedione, 1,2-bis(4-bromophenyl)- Ethanedione, bis(4-bromophenyl)- AI3-25040 Benzyl, 4,4'-dibromo- p,p'-Dibromobenzil EINECS 252-628-1 NSC 74075 UNII-O4TXV8A656 (CAS 35578-47-3)
- 3,4,4-Trifluoro-3-(perfluorobutyl)-1,2-oxathietane 2,2-dioxide (CAS 85211-95-6)
- Ferric tris(catecholate) (CAS 67966-15-8)
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- 4-Bromo-3-chloro-2-(difluoromethyl)-6-methoxypyridine (CAS 1803688-56-3)
- 4-(2-Sulfanyl-1h-imidazol-1-yl)-n-(thiophen-2-ylmethyl)benzamide (CAS 1146289-96-4)
- 2-Iodo-5-methoxyaniline, 97% (CAS 153898-63-6)
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