1,2-Dibromo-3,3-dimethylbutane CAS 640-21-1
| CAS No. | 640-21-1 |
| Molecular Formula | C6H12Br2 |
| Molecular Weight | 243.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,2-Dibromo-3,3-dimethylbutane.
CATO supplies 1,2-Dibromo-3,3-dimethylbutane (CAS 640-21-1), a certified reference material (molecular formula C6H12Br2, MW 243.97 g/mol) for analytical method development and quality control.
Owing to bromine substitution, 1,2-Dibromo-3,3-dimethylbutane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 243.97 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 1,2-Dibromo-3,3-dimethylbutane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H12Br2 |
| Molecular Weight | 243.97 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 1,3-Dibromo-2,3-dimethylbutane (CAS 49623-54-3)
- 1,4-Dibromo-2,2-dimethylbutane (CAS 52750-57-9)
- 1,4-Dibromo-4-methylpentane (CAS 52278-94-1)
- 1,5-Dibromo-3-methylpentane (CAS 4457-72-1)
- 2,3-Dibromo-2,3-dimethylbutane (CAS 594-81-0)
- 1,3-Dibromo-3-methylbutan-2-one (CAS 1518-06-5)
- 2,4-Dibromo-3-pentanone (CAS 815-60-1)
- 2,5-Dibromo-1,3,4-thiadiazole (CAS 55981-29-8)
Recommended Standards
- 1-Bromo-2-(bromomethyl)pentane (CAS 1781-52-8)
- 1,2-Dibromohexane (CAS 624-20-4)
- 3,4-Dibromohexane (CAS 16230-28-7)
- 2,4,5,6-Tetrachloro-M-Xylene (CAS 877-09-8)
- 2-(6-Methoxypyridin-3-yl)-6-(oxirane-2-carbonyl)-5-(trifluoromethyl)-2,3-dihydropyridazin-3-one (CAS 866143-78-4)
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- (R)-N-((S)-1-Cyclopropyl-2,2,2-trifluoroethyl)-2-methylpropane-2-sulfinamide (CAS 2230871-70-0)
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