Bromo[(2E)-2-methyl-2-buten-1-yl]magnesium CAS 129433-39-2
| CAS No. | 129433-39-2 |
| Molecular Formula | C5H9BrMg |
| Molecular Weight | 173.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Bromo[(2E)-2-methyl-2-buten-1-yl]magnesium is closely related to a salt form, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Bromo[(2E)-2-methyl-2-buten-1-yl]magnesium (CAS 129433-39-2) is a high-purity analytical reference standard with the molecular formula C5H9BrMg and a molecular weight of 173.33 g/mol.
Bromo[(2E)-2-methyl-2-buten-1-yl]magnesium (C5H9BrMg) contains a salt form, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Bromo[(2E)-2-methyl-2-buten-1-yl]magnesium 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 | C5H9BrMg |
| Molecular Weight | 173.33 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) | 1.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
- Methyl Octanoate-d15 (CAS 1219798-91-0)
- Bromocyclopentylmagnesium (2.0 M Solution in Diethyl Ether) (CAS 33240-34-5)
- n-Butyltetrahydro-2h-thiopyran-4-amine (CAS 52162-97-7)
- Pent-4-enylmagnesium bromide, 0.50 M in 2-MeTHF (CAS 34164-50-6)
- N,N-Bis(2-chloroethyl)-4-(3-(6-(4-methylpiperazin-1-yl)-1H,3'H-[2,5'-bibenzo[d]imidazol]-2'-yl)propyl)aniline (CAS 178481-68-0)
- 2-(2-((1-Ethoxy-1-oxopropan-2-yl)amino)-2-oxoethoxy)acetic acid (CAS 1397000-27-9)
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- Pentyl dihydrogen phosphate (CAS 12789-46-7)
- 5-Methyl-2-(propan-2-yloxy)aniline (CAS 69676-24-0)
- (E)-4-(Dimethylamino)-1,1,1-trifluoro-3-buten-2-one (CAS 127223-93-2)
- N-Methyl-2-(methylsulfanyl)aniline (CAS 13372-62-8)
- 4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide (CAS 293326-14-4)
- 4-[(1r)-1-hydroxyethyl]phenol (CAS 129830-97-3)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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