1,4-Bis(2-bromoethynyl)benzene CAS 65127-72-2
| CAS No. | 65127-72-2 |
| Molecular Formula | C10H4Br2 |
| Molecular Weight | 283.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 283.95 g/mol gives 1,4-Bis(2-bromoethynyl)benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,4-Bis(2-bromoethynyl)benzene (CAS 65127-72-2), molecular formula C10H4Br2 and molecular weight 283.95 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,4-Bis(2-bromoethynyl)benzene (C10H4Br2) contains bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 283.95 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 1,4-Bis(2-bromoethynyl)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.
Physical & Chemical Properties
| Molecular Formula | C10H4Br2 |
| Molecular Weight | 283.95 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
Related Bis Standards
- 2-(2-(Bromoethynyl)-4,5-dimethoxyphenyl)acetonitrile (CAS 2715198-72-2)
- (Bromoethynyl)triisopropylsilane (CAS 111409-79-1)
- 1-((Bromoethynyl)sulfonyl)-4-methylbenzene (CAS 227454-51-5)
- 4-(Bromoethynyl)-1,1'-biphenyl (CAS 1321929-32-1)
- 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)
- 1-(Bromoethynyl)-4-chloro-2-fluorobenzene (CAS 2187435-46-5)
Recommended Standards
- (5-(4-Bromopyridin-2-yl)thiophen-2-yl)boronic acid (CAS 2225170-33-0)
- 2-(4-Bromophenyl)-6-methyl-1,3,6,2-dioxazaborocane (CAS 115247-41-1)
- (4-(4-Bromopyridin-2-yl)thiophen-2-yl)boronic acid (CAS 2225179-80-4)
- 2-Bromo-6-(4,4,6-TriMethyl-1,3,2-DioxaboriNan-2-yl)pyriDine (CAS 1279115-58-0)
- Anthracene-2,3-dicarboxylic acid (CAS 10210-28-3)
- 6-Ethynyl-2,3-dihydrobenzo[b][1,4]dioxine (CAS 1057670-26-4)
- 1-(2-Carboxyethyl)-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1053659-21-4)
- Ethyl 4-(ethoxymethyl)benzoate (CAS 133017-02-4)
- 3-methyl-[1,2,3]triazolo[1,5-a]pyridine-7-carboxylic acid (CAS 1379189-99-7)
- rel-(4R,5S)-4,5-bis(4-chlorophenyl)-2-(2-isopropoxy-4-methoxyphenyl)-4,5-dihydro-1H-imidazole (CAS 548472-49-7)
- cyclohexylhydrazine (CAS 6498-34-6)
- 1-Methyl-N-[4-oxo-4-(pyrrolidin-1-yl)butyl]-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 956441-68-2)
- 2,8-Dimethylquinoline-6-carbonitrile (CAS 1369283-47-5)
- Liraglutide (CAS 204656-20-2)
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