(<I>R</I>)-(-)-5,5′-dichloro-2,2′-bis(diphenylphosphine)-6,6′-dimethoxy-1,1′ -Biphenyl CAS 185913-98-8

Purity 97%+In StockPharmaceutical Standards
CAS No.185913-98-8
Molecular FormulaC38H66Cl2O2P2
Molecular Weight687.78 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(<I>R</I>)-(-)-5,5′-dichloro-2,2′-bis(diphenylphosphine)-6,6′-dimethoxy-1,1′ -Biphenyl CAS 185913-98-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (<I>R</I>)-(-)-5,5′-dichloro-2,2′-bis(diphenylphosphine)-6,6′-dimethoxy-1,1′ -Biphenyl.

CATO supplies (<I>R</I>)-(-)-5,5′-dichloro-2,2′-bis(diphenylphosphine)-6,6′-dimethoxy-1,1′ -Biphenyl (CAS 185913-98-8), a certified reference material (molecular formula C38H66Cl2O2P2, MW 687.78 g/mol) for analytical method development and quality control.

Based on its molecular formula C38H66Cl2O2P2, (<I>R</I>)-(-)-5,5′-dichloro-2,2′-bis(diphenylphosphine)-6,6′-dimethoxy-1,1′ -Biphenyl contains organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 687.78 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).

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), (<I>R</I>)-(-)-5,5′-dichloro-2,2′-bis(diphenylphosphine)-6,6′-dimethoxy-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

Molecular FormulaC38H66Cl2O2P2
Molecular Weight687.78 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2010
Halogen ContentCl-containing

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