2,2'-((2,5-Di(pyridin-4-yl)-1,4-phenylene)bis(oxy))diethanol CAS 1186466-82-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1186466-82-9
Molecular FormulaC20H20N2O4
Molecular Weight352.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2'-((2,5-Di(pyridin-4-yl)-1,4-phenylene)bis(oxy))diethanol CAS 1186466-82-9 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.

2,2'-((2,5-Di(pyridin-4-yl)-1,4-phenylene)bis(oxy))diethanol (CAS 1186466-82-9) is a high-purity analytical reference standard with the molecular formula C20H20N2O4 and a molecular weight of 352.38 g/mol.

Structurally, 2,2'-((2,5-Di(pyridin-4-yl)-1,4-phenylene)bis(oxy))diethanol (C20H20N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 352.38 g/mol, it falls into the moderately-high-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).

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 FormulaC20H20N2O4
Molecular Weight352.38 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 DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms2

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