6,6'-((3,3',5,5'-Tetra-tert-butyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine CAS 138776-88-2

Purity 97%+In StockPharmaceutical Standards
CAS No.138776-88-2
Molecular FormulaC52H56O6P2
Molecular Weight838.94 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6,6'-((3,3',5,5'-Tetra-tert-butyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine CAS 138776-88-2 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 6,6'-((3,3',5,5'-Tetra-tert-butyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine.

6,6'-((3,3',5,5'-Tetra-tert-butyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine (CAS 138776-88-2), molecular formula C52H56O6P2 and molecular weight 838.94 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 6,6'-((3,3',5,5'-Tetra-tert-butyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine (C52H56O6P2) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 25.0, corresponding to approximately 25 ring(s) or double-bond equivalent(s). With a molecular weight of 838.94 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 6,6'-((3,3',5,5'-Tetra-tert-butyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine 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 FormulaC52H56O6P2
Molecular Weight838.94 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)25.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996

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