2-Hydroxy-3-(diphenylphosphino)-2’-[hydroxy[2-(triethylsilyl)phenyl]methyl]-[1,1’-binaphthalene] CAS 1661883-81-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1661883-81-3
Molecular FormulaC45H43O2PSi
Molecular Weight674.88 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-3-(diphenylphosphino)-2’-[hydroxy[2-(triethylsilyl)phenyl]methyl]-[1,1’-binaphthalene] CAS 1661883-81-3 chemical structure

Description

The occurrence of 2-Hydroxy-3-(diphenylphosphino)-2’-[hydroxy[2-(triethylsilyl)phenyl]methyl]-[1,1’-binaphthalene] is closely related to organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Hydroxy-3-(diphenylphosphino)-2’-[hydroxy[2-(triethylsilyl)phenyl]methyl]-[1,1’-binaphthalene] (CAS 1661883-81-3) is a high-purity analytical reference standard with the molecular formula C45H43O2PSi and a molecular weight of 674.88 g/mol.

Owing to organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 2-Hydroxy-3-(diphenylphosphino)-2’-[hydroxy[2-(triethylsilyl)phenyl]methyl]-[1,1’-binaphthalene] is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 674.88 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC45H43O2PSi
Molecular Weight674.88 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)24.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993

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