2',5'-Dibromo-1,1':4',1''-terphenyl CAS 1293386-03-4
| CAS No. | 1293386-03-4 |
| Molecular Formula | C18H12Br2 |
| Molecular Weight | 388.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H12Br2, 2',5'-Dibromo-1,1':4',1''-terphenyl contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
2',5'-Dibromo-1,1':4',1''-terphenyl (CAS 1293386-03-4) is a high-purity analytical reference standard with the molecular formula C18H12Br2 and a molecular weight of 388.10 g/mol.
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.
CATO manufactures 2',5'-Dibromo-1,1':4',1''-terphenyl 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 | C18H12Br2 |
| Molecular Weight | 388.10 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 |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 4,4’’-Dibromo-p-terphenyl (CAS 17788-94-2)
- 3,3''-Dibromo-1,1':2',1''-terphenyl (CAS 95918-90-4)
- 3,3''-Dibromo-1,1':3',1''-terphenyl (CAS 95962-62-2)
- 4,4''-Dibromo-1,1':2',1''-terphenyl (CAS 24253-43-8)
- 4,4''-Dibromo-1,1':3',1''-terphenyl (CAS 83909-22-2)
- 4-(6,8-Dibromo-2-methylimidazo[1,2-a]pyridin-3-yl)thiazol-2-amine (CAS 886507-34-2)
- 6,11-dibromo-1,4-diazatriphenylene (CAS 1012836-59-7)
- 5,9-Dibromo-7H-benzo[c]fluoren-7-one (CAS 1637660-36-6)
Recommended Standards
- 1,1,1,3,3,3-Hexafluoro-2-(3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propan-2-ol (CAS 2376598-54-6)
- 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-fluoro-6-iodopyrimidine-2,4(1H,3H)-dione (CAS 87818-06-2)
- 2,7-Bis(bromomethyl)pyrene (CAS 63996-39-4)
- (2Z)-3-(4-Chlorophenyl)-2-[1-methyl-5-(2,2,2-trichloroacetyl)-1H-pyrrol-2-yl]prop-2-enenitrile (CAS 246022-29-7)
- (3-(tert-Butoxy)-5-cyclopropoxypyridin-4-yl)methanamine (CAS 1243475-84-4)
- 4-Aminopyrrolo[2,1-F][1,2,4]triazine-5-carboxylic acid (CAS 1236201-15-2)
- (2R,3S,5R)-5-(2-Amino-6-chloro-9H-purin-9-yl)-2-(((4-methylbenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-methylbenzoate (CAS 35095-93-3)
- 3-Amino-4-phenyl-6-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 832737-67-4)
- 3-(3-(1H-1,2,3-Triazol-1-yl)pyrrolidine-1-carbonyl)benzonitrile (CAS 1798537-70-8)
- (4S,5S)-4,5-diphenyl-4,5-dihydro-1H-imidazol-2-amine (CAS 836657-92-2)
- Foramsulfuron (CAS 173159-57-4)
- 5-Methylcytidine-5-triphosphate sodium salt - 100mM aqueous solution (CAS 327174-86-7)
- n1-(1-Methoxypropan-2-yl)-n3,n3-dimethylpropane-1,3-diamine (CAS 1249112-20-6)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com