1-Bromo-4-(1-ethynylcyclopropyl)benzene CAS 1378873-54-1
| CAS No. | 1378873-54-1 |
| Molecular Formula | C11H9Br |
| Molecular Weight | 221.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-Bromo-4-(1-ethynylcyclopropyl)benzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 1-Bromo-4-(1-ethynylcyclopropyl)benzene (CAS 1378873-54-1), a certified reference material (molecular formula C11H9Br, MW 221.09 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H9Br, 1-Bromo-4-(1-ethynylcyclopropyl)benzene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 221.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C11H9Br |
| Molecular Weight | 221.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
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Recommended Standards
- 5-Bromo-2-fluorothioanisole (CAS 1370025-62-9)
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- tert-Butyl (R)-3-(4-fluorobenzyl)piperazine-1-carboxylate (CAS 1240589-10-9)
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- 2-(2,6-Dimethylmorpholino)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde (CAS 326008-25-7)
- 3,4-Dichloro-1-methylpyridin-2(1H)-one (CAS 1956324-42-7)
- CAS CATO-C3D-262518 (CAS CATO-C3D-262518)
- Salbutamol impurity 91 (CAS CATO-C4X-1176191)
- (5-Amino-1-(4-bromophenyl)-1H-pyrazol-4-yl)(o-tolyl)methanone (CAS 618091-92-2)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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