1,4-Dibromo-2,3,5,6-tetramethylbenzene CAS 1646-54-4
| CAS No. | 1646-54-4 |
| Molecular Formula | C10H12Br2 |
| Molecular Weight | 292.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1,4-Dibromo-2,3,5,6-tetramethylbenzene 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.
1,4-Dibromo-2,3,5,6-tetramethylbenzene (CAS 1646-54-4), molecular formula C10H12Br2 and molecular weight 292.01 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,4-Dibromo-2,3,5,6-tetramethylbenzene (C10H12Br2) is characterized by 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. 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 | C10H12Br2 |
| Molecular Weight | 292.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 3,4-Dibromo-n-butylbenzene (CAS 1160574-94-6)
- 1,3-Dibromo-5-(tert-butyl)benzene (CAS 129316-09-2)
- 1,2-Dibromo-3,4,5,6-tetramethylbenzene (CAS 36321-73-0)
- 1,2-Dibromo-4-tert-butylbenzene (CAS 6683-75-6)
- 1,3-Dibromo-5-isopropyl-2-methylbenzene (CAS 2624417-82-7)
- 1,4-Dibromo-2,5-diethylbenzene (CAS 40787-48-2)
- 2,5-Dibromo-1,3-diethylbenzene (CAS 314084-64-5)
- 3,5-Dibromo-4-n-butylbenzene (CAS 75894-94-9)
Recommended Standards
- 1-Bromo-4-(3-bromo-2-methylpropyl)benzene (CAS 1483134-51-5)
- 1,2-Bis(bromomethyl)-4,5-dimethylbenzene (CAS 60070-06-6)
- 1-Bromo-2-(3-bromo-2-methylpropyl)benzene (CAS 1462903-03-2)
- 4-Bromo-1-(bromomethyl)-2-isopropylbenzene (CAS 1370601-38-9)
- 1-(4-Methoxy-biphenyl-4-yl)-ethanol (CAS 60992-53-2)
- tert-butyl 4-(2-oxo-2,3-dihydro-1H-1,3-benzodiazol-1-yl)-1,2,3,6-tetrahydropyridine-1-carboxylate (CAS 834881-66-2)
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- 5-Methylthiazole-2-carboxylic Acid (CAS 61291-21-2)
- Indapamide Impurity 46 (CAS CATO-C4X-140046)
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- 1,3-Bis((S)-1-phenylethyl)-1H-imidazol-3-ium tetrafluoroborate (CAS 613686-48-9)
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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