4-(Bromoethynyl)-1,1'-biphenyl CAS 1321929-32-1
| CAS No. | 1321929-32-1 |
| Molecular Formula | C14H9Br |
| Molecular Weight | 257.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(Bromoethynyl)-1,1'-biphenyl (C14H9Br) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 257.13 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 4-(Bromoethynyl)-1,1'-biphenyl (CAS 1321929-32-1), a certified reference material (molecular formula C14H9Br, MW 257.13 g/mol) for analytical method development and quality control.
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), 4-(Bromoethynyl)-1,1'-biphenyl 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 | C14H9Br |
| Molecular Weight | 257.13 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related Bromoethynyl Standards
- 1-((Bromoethynyl)sulfonyl)-4-methylbenzene (CAS 227454-51-5)
- (Bromoethynyl)triisopropylsilane (CAS 111409-79-1)
- 1-(Bromoethynyl)-4-(trifluoromethyl)benzene (CAS 313343-88-3)
- methyl 4-(2-bromoethynyl)benzoate (CAS 225928-10-9)
- 2-(2-(Bromoethynyl)-4-fluorophenyl)acetonitrile (CAS 2715198-71-1)
- 2-(2-(Bromoethynyl)-4,5-dimethoxyphenyl)acetonitrile (CAS 2715198-72-2)
- 1-(Bromoethynyl)-4-chloro-2-fluorobenzene (CAS 2187435-46-5)
- 2-(Bromoethynyl)-1-chloro-3-fluorobenzene (CAS 2227272-53-7)
Recommended Standards
- 1-(4-Bromophenyl)-3-propylurea (CAS 13208-61-2)
- 5-Bromo-3-(piperazin-1-yl)pyridin-2-amine (CAS 1335051-33-6)
- (S)-2-amino-N-(4-bromobenzyl)propanamide (CAS 1304416-25-8)
- 5-Bromo-N-isobutylpicolinamide (CAS 1339520-68-1)
- 3-((Tert-butoxycarbonyl)amino)-3-(4-(methylthio)phenyl)propanoic acid (CAS 454473-83-7)
- 17-O-Methylboldenone (CAS 20401-12-1)
- N-(3-Aminophenyl)-2-(isopentyloxy)benzamide (CAS 1020722-49-9)
- 5-bromo-7-chloro-1H-pyrazolo[3,4-c]pyridine (CAS 1416374-15-6)
- Medroxyprogesterone Acetate EP Impurity I (CAS CATO-C4X-14573)
- Chlorbenside-Sulfoxide (CAS 7047-28-1)
- (R)-2-Cl-Phox-tBu (CAS 2757082-51-0)
- 3-Bromo-4-(morpholinomethyl)aniline (CAS 5200-66-8)
- Pentoxazone (CAS 110956-75-7)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
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