Pcb No. 52 CAS 35693-99-3
| CAS No. | 35693-99-3 |
| Molecular Formula | C12H6Cl4 |
| Molecular Weight | 291.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 291.99 g/mol gives Pcb No. 52 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Pcb No. 52 (CAS 35693-99-3) is a high-purity analytical reference standard with the molecular formula C12H6Cl4 and a molecular weight of 291.99 g/mol.
Based on its molecular formula C12H6Cl4, Pcb No. 52 contains chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 291.99 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.
As a certified reference material (CRM), Pcb No. 52 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 | C12H6Cl4 |
| Molecular Weight | 291.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1967 |
| Halogen Content | Cl-containing |
Recommended Standards
- Pcb No. 51 (CAS 68194-04-7)
- Pcb No. 53 (CAS 41464-41-9)
- Pcb No. 50 (CAS 62796-65-0)
- Pcb No. 54 (CAS 15968-05-5)
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