2-Hydroxy-4,5-diphenyl-1,3,2-dioxaphospholane 2-oxide CAS 97176-53-9

Purity 97%+In StockPharmaceutical Standards
CAS No.97176-53-9
Molecular FormulaC14H13O4P
Molecular Weight276.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-4,5-diphenyl-1,3,2-dioxaphospholane 2-oxide CAS 97176-53-9 chemical structure

Description

2-Hydroxy-4,5-diphenyl-1,3,2-dioxaphospholane 2-oxide (CAS 97176-53-9), molecular formula C14H13O4P and molecular weight 276.22 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-Hydroxy-4,5-diphenyl-1,3,2-dioxaphospholane 2-oxide (C14H13O4P) 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 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 276.22 g/mol, it falls into the medium-molecular-weight range. 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.

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 FormulaC14H13O4P
Molecular Weight276.22 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984

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