(20aR)-1,20-Bis(diphenylphosphino)-6,7,8,9,10,11,12,13,14,15-decahydrodibenzo[b,d][1,6]dioxacyclohexadecine CAS 331768-71-9

Purity 97%+In StockPharmaceutical Standards
CAS No.331768-71-9
Molecular FormulaC46H46O2P2
Molecular Weight692.80 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(20aR)-1,20-Bis(diphenylphosphino)-6,7,8,9,10,11,12,13,14,15-decahydrodibenzo[b,d][1,6]dioxacyclohexadecine CAS 331768-71-9 chemical structure

Description

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

(20aR)-1,20-Bis(diphenylphosphino)-6,7,8,9,10,11,12,13,14,15-decahydrodibenzo[b,d][1,6]dioxacyclohexadecine (CAS 331768-71-9) is a high-purity analytical reference standard with the molecular formula C46H46O2P2 and a molecular weight of 692.80 g/mol.

Structurally, (20aR)-1,20-Bis(diphenylphosphino)-6,7,8,9,10,11,12,13,14,15-decahydrodibenzo[b,d][1,6]dioxacyclohexadecine (C46H46O2P2) contains organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, 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 692.80 g/mol, it falls into the high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), (20aR)-1,20-Bis(diphenylphosphino)-6,7,8,9,10,11,12,13,14,15-decahydrodibenzo[b,d][1,6]dioxacyclohexadecine 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 FormulaC46H46O2P2
Molecular Weight692.80 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)24.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025

Recommended Standards

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