Methyl 5-bromopent-3-enoate CAS 81166-22-5
| CAS No. | 81166-22-5 |
| Molecular Formula | C6H9BrO2 |
| Molecular Weight | 193.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 193.04 g/mol gives Methyl 5-bromopent-3-enoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 5-bromopent-3-enoate (CAS 81166-22-5) is a high-purity analytical reference standard with the molecular formula C6H9BrO2 and a molecular weight of 193.04 g/mol.
Methyl 5-bromopent-3-enoate (C6H9BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H9BrO2 |
| Molecular Weight | 193.04 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Br-containing |
Related Methyl Standards
- Methyl 4-bromopent-4-enoate (CAS 194805-62-4)
- (4E)-5-Bromopent-4-enoic acid (CAS 88663-50-7)
- 2-Bromopent-4-enoic acid (CAS 39149-85-4)
- 4-Bromopent-4-enoic acid (CAS 86953-48-2)
- (5-Bromopent-1-en-1-yl)benzene (CAS 37464-87-2)
- 4-Bromopent-2-ene (CAS 1809-26-3)
- (Z)-1-Bromopent-2-ene (CAS 7348-78-9)
- 1-bromopent-2-ene (CAS 20599-27-3)
Recommended Standards
- Methyl 4-bromo-3-methylbut-2-enoate (CAS 50465-52-6)
- 2-Bromo-3-methylbutenoic acid methyl ester 4627AE 51263-40-2 C6H9BrO2 (CAS 51263-40-2)
- methyl 3-bromocyclobutane-1-carboxylate (CAS 4935-00-6)
- (E)-6-bromohex-4-enoic acid (CAS CATO-C3D-262633)
- Okadaicacidammoniumsalt (CAS 155716-06-6)
- 3-Iodo-N-(3-methylpyridin-2-yl)benzamide (CAS 349118-25-8)
- (S)-3-(3-Fluoro-2-nitrophenoxy)pyrrolidine hydrochloride (CAS 1286208-06-7)
- 3-Methyl-4-(2-methylphenoxy)aniline (CAS 860573-00-8)
- 4-(Difluoromethoxy)benzenesulfonic acid (CAS 142739-04-6)
- 10-Chloro-10, 11-dihydrodibenz[b,f]thiepin (CAS 1725-32-2)
- tert-butyl (2S)-2-(2-chloroacetamido)-3-methylbutanoate (CAS 1909295-01-7)
- [4-(bromomethyl)cyclohexyl]benzene (CAS 1521961-37-4)
- (1,1-Dioxidotetrahydrothiophen-3-yl)(piperazin-1-yl)methanone (CAS 900641-32-9)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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