2-Methyl-1-undecene CAS 145732-28-1
| CAS No. | 145732-28-1 |
| Molecular Formula | C11H21Br |
| Molecular Weight | 233.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Methyl-1-undecene is closely related to bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Methyl-1-undecene (CAS 145732-28-1), a certified reference material (molecular formula C11H21Br, MW 233.19 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H21Br, 2-Methyl-1-undecene contains bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 233.19 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), 2-Methyl-1-undecene 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 | C11H21Br |
| Molecular Weight | 233.19 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Br-containing |
Related Methyl Standards
Recommended Standards
- 3-(2,2,2-Trifluoroethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyridazin-4(3H)-one (CAS 1447958-90-8)
- 1-(Bromomethyl)-1-pentylcyclopentane (CAS 1465010-23-4)
- 3-(Trifluoromethyl)-L-phenylalanine (CAS 14464-68-7)
- 3-(3-(Trifluoromethoxy)phenyl)azetidin-3-ol (CAS 1470582-28-5)
- (S)-3-(4-Nitro-1-oxoisoindolin-2-yl)piperidine-2,6-dione (CAS 202271-84-9)
- n-(4-Fluorobenzyl)-2-((4-methyl-5-(m-tolyl)-4h-1,2,4-triazol-3-yl)thio)acetamide (CAS 848832-73-5)
- 2-Bromo-5-(difluoromethyl)-4-hydroxynicotinonitrile (CAS 1805229-39-3)
- 1-(4-Fluoro-2-nitrophenyl)piperidine (CAS 719-70-0)
- 5-Fluoro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-boronic Acid Pinacol Ester (CAS 1221496-98-5)
- 2-((1-(4-Fluorophenyl)ethyl)(methyl)amino)ethanol (CAS 1353965-78-2)
- 2-Bromo-1-isothiocyanato-4-methoxybenzene (CAS 596806-35-8)
- (5-Fluoro-1H-indol-1-yl)(4-methoxyphenyl)methanone (CAS 820234-22-8)
- 3-(1h-Indol-3-yl)-N-propylpropanamide (CAS 59022-64-9)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
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