1,4-Bis(4-bromophenoxy)-2,5-dimethylhexane-2,5-diol CAS 186498-09-9
| CAS No. | 186498-09-9 |
| Molecular Formula | C20H24Br2O4 |
| Molecular Weight | 488.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1,4-Bis(4-bromophenoxy)-2,5-dimethylhexane-2,5-diol (CAS 186498-09-9), a certified reference material (molecular formula C20H24Br2O4, MW 488.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H24Br2O4, 1,4-Bis(4-bromophenoxy)-2,5-dimethylhexane-2,5-diol contains a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 488.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H24Br2O4 |
| Molecular Weight | 488.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Br-containing |
Related Bis Standards
- (3-(4-bromophenoxy)phenyl)(cyano)methyl 2-(4-chlorophenyl)-3-methylbutanoate (CAS 65295-49-0)
- 4-(4-Bromophenoxy)-2,6-bis[(4S)-4,5-dihydro-4-(1-methylethyl)-2-oxazolyl]pyridine (CAS 862183-13-9)
- 2-(4-Bromophenoxy)-1-(4-((4-fluorophenyl)sulfonyl)piperazin-1-yl)ethanone (CAS 439939-70-5)
- 1,8-Bis(4-bromophenoxy)octane (CAS 117499-25-9)
- (2-(4-Bromophenoxy)ethoxy)(tert-butyl)diphenylsilane (CAS 1704073-75-5)
- (2-(3-Bromophenoxy)ethoxy)(tert-butyl)diphenylsilane (CAS 1704073-86-8)
- 1-{[2-(4-bromophenoxy)-1,3-thiazol-5-yl]methyl}-4-(4-fluorophenyl)piperazine (CAS 439097-13-9)
- 2-(3-Bromophenoxy)tetrahydropyran (CAS 57999-49-2)
Recommended Standards
- 2,3,3',4,4',5,5',6,6',7,7',8,8'-Tridecafluoro-1,1'-binaphthalene (CAS 89883-28-3)
- (E)-N-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]({4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl})methylidene}hydroxylamine (CAS 320420-34-6)
- 3-(1H,1H,9H-Perfluorononyloxy)-1,2-propenoxide (CAS 125370-60-7)
- 2,4-Dibromo-17,17-ethylenedioxy-1,3,5(10)-estratriene-3,16a-diol (CAS 90474-20-7)
- 2-(4-Chlorophenoxy)acetamide (CAS 3598-10-5)
- Pentyltriphenylphosphonium Bromide (CAS 21406-61-1)
- 5-(2-Acetylphenyl)-2-fluorobenzoic acid (CAS 1345471-80-8)
- (3S,5S)-3-Amino-5-hydroxy-piperidine-1-carboxylic acid benzyl ester (CAS 2381636-14-0)
- Trichloromethyl Isocyanate (CAS 30121-98-3)
- 9-((3aR,4R,6R,6aR)-2,2-Dimethyl-6-((methylamino)methyl)tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-9H-purin-6-amine (CAS 34245-49-3)
- Brimonidine Impurity 27 (CAS 185312-10-1)
- 2-(Pyrrolidin-1-yl)acetohydrazide dihydrochloride (CAS 7037-14-1)
- 5-(Aminomethyl)-3-(difluoromethyl)-6-(trifluoromethyl)pyridin-2-amine (CAS 1805362-52-0)
- Characteristic MSH-Tetrapeptide (CAS 4289-02-5)
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