4,4'-Bis[bis(2,3,4,5,6-pentachlorophenyl)methyl]-2,2',3,3',5,5',6,6'-octachloro-1,1'-biphenyl CAS 33399-69-8

Description

4,4'-Bis[bis(2,3,4,5,6-pentachlorophenyl)methyl]-2,2',3,3',5,5',6,6'-octachloro-1,1'-biphenyl (CAS 33399-69-8), molecular formula C38H2Cl28 and molecular weight 1451.11 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4,4'-Bis[bis(2,3,4,5,6-pentachlorophenyl)methyl]-2,2',3,3',5,5',6,6'-octachloro-1,1'-biphenyl (C38H2Cl28) contains chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 24.0, corresponding to approximately 24 ring(s) or double-bond equivalent(s). With a molecular weight of 1451.11 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 4,4'-Bis[bis(2,3,4,5,6-pentachlorophenyl)methyl]-2,2',3,3',5,5',6,6'-octachloro-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

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