1-Bromo-3-chlorobutane CAS 56481-42-6
| CAS No. | 56481-42-6 |
| Molecular Formula | C4H8BrCl |
| Molecular Weight | 171.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Bromo-3-chlorobutane is closely related to chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Bromo-3-chlorobutane (CAS 56481-42-6) is a high-purity analytical reference standard with the molecular formula C4H8BrCl and a molecular weight of 171.46 g/mol.
Based on its molecular formula C4H8BrCl, 1-Bromo-3-chlorobutane contains chlorine/bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 171.46 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.
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-Bromo-3-chlorobutane 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 | C4H8BrCl |
| Molecular Weight | 171.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1973 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 1-Bromo-2-chlorobutane (CAS 108200-18-6)
- 3-Bromo-1-chlorobutane (CAS 141507-40-6)
- 1-Bromo-3-chloro-2-methylpropane (CAS 6974-77-2)
- 2-Bromo-1-chloro-2-methylpropane (CAS 2074-80-8)
- 3-((4-((2-bromo-6-methyl-4-nitrophenyl)azo)-3-methylphenyl)(2-hydroxyethyl)amino)propiononitrile 6919-61-5 CTK8D5671 (CAS 6919-61-5)
- methyl 2-bromo-2,3,3,3-tetradeuterio-propanoate (CAS 1398065-68-3)
- 286013-15-8 1-Bromo(~13~C_6_)hexane DTXSID20745668 (CAS 286013-15-8)
- 3-Bromo-2-ethynylfuran (CAS 1341495-68-8)
Recommended Standards
- Brexpiprazole Impurity 70 (CAS 6940-78-9)
- 2-Chloro-4-(trifluoromethyl)oxazole (CAS 1060816-15-0)
- 2-Bromopropionyl Chloride (CAS 7148-74-5)
- 5-Chloro-3-(trifluoromethyl)isoxazole (CAS 117541-42-1)
- Methyl 5-(Bromomethyl)isoxazole-3-carboxylate (CAS 95312-27-9)
- ethyl morpholine-4-carboxylate (CAS 6976-49-4)
- 2-(3,4-Diaminophenoxy)ethan-1-ol (CAS 581083-32-1)
- 3,5,6,8-Tetrachloroacenaphthene (CAS 100125-35-7)
- N-(2-Chlorophenyl)-2-((6-(furan-2-yl)pyridazin-3-yl)thio)acetamide (CAS 922891-72-3)
- (9-(Naphthalen-2-yl)-9H-carbazol-3-yl)boronic acid (CAS 1133057-98-3)
- N-[2-(5-Amino-4H-1,2,4-triazol-3-yl)ethyl]benzamide (CAS 108921-95-5)
- 5-(4-Bromophenyl)-3-phenylisoxazole (CAS 53573-22-1)
- N'3-[3,5-di(trifluoromethyl)phenyl]-5-chloro-1-methyl-1H-pyrazole-3-carbohydrazide (CAS 648408-73-5)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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