4,4'-Dibromo-3,3'-dimethyl-1,1'-binaphthalene CAS 74866-25-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 74866-25-4 |
| Molecular Formula | C22H16Br2 |
| Molecular Weight | 440.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-Dibromo-3,3'-dimethyl-1,1'-binaphthalene (CAS 74866-25-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H16Br2. Molecular weight: 440.17 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H16Br2 |
| Molecular Weight | 440.17 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
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- 5,8-Dibromo-2,3-diphenylquinoxaline (CAS 94544-77-1)
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Recommended Standards
- Bis(2-(5-bromothiophen-2-yl)ethyl) carbonate (CAS 2432029-06-4)
- 2,2'-Bis(bromomethyl)-1,1'-binaphthalene (CAS 54130-90-4)
- Pretomanid Impurity 7 (CAS CATO-C4X-26067)
- (R)-4-(piperidin-2-yl)benzonitrile (CAS 1213483-76-1)
- N,N'-Dibenzylpropanediamide (CAS 10255-99-9)
- 2'-Methyl-1h,2'h-[3,3'-bi(1,2,4-triazol)]-5-amine (CAS 1339100-30-9)
- 4-Bromo-5-fluoro-N-isopropyl-2-nitroaniline (CAS 1314987-28-4)
- 1-Bromo-2-pentene, predominantly trans 7348-71-2 (CAS 7348-71-2)
- N-(2,4-Dichlorophenyl)-4-hydroxy-2-oxo-1-propyl-1,2-dihydroquinoline-3-carboxamide (CAS 300716-27-2)
- Peptide Impurity (CAS CATO-CPTD788810)
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