3′-Bromo-4-Iodo-Biphenyl CAS 187275-73-6
| CAS No. | 187275-73-6 |
| Molecular Formula | C12H8BrI |
| Molecular Weight | 359.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3′-Bromo-4-Iodo-Biphenyl (CAS 187275-73-6), molecular formula C12H8BrI and molecular weight 359.00 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to bromine/iodine substitution, an aromatic ring system, 3′-Bromo-4-Iodo-Biphenyl is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 359.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3′-Bromo-4-Iodo-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 | C12H8BrI |
| Molecular Weight | 359.00 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Br/I-containing |
Related Bromo Standards
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- 3-Bromo-5-iodo-1,1'-biphenyl (CAS 136649-44-0)
- 3-Bromo-3'-iodo-1,1'-biphenyl (CAS 187275-76-9)
- 2-Bromo-2'-iodo-1,1'-biphenyl (CAS 39655-12-4)
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Recommended Standards
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