(4R,4′R)-2,2′-(1,3-Phenylene)bis[4-(1,1-dimethylethyl)-4,5-dihydrooxazole] CAS 2757083-01-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2757083-01-3
Molecular FormulaC20H28N2O2
Molecular Weight328.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4R,4′R)-2,2′-(1,3-Phenylene)bis[4-(1,1-dimethylethyl)-4,5-dihydrooxazole] CAS 2757083-01-3 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 (4R,4′R)-2,2′-(1,3-Phenylene)bis[4-(1,1-dimethylethyl)-4,5-dihydrooxazole].

CATO supplies (4R,4′R)-2,2′-(1,3-Phenylene)bis[4-(1,1-dimethylethyl)-4,5-dihydrooxazole] (CAS 2757083-01-3), a certified reference material (molecular formula C20H28N2O2, MW 328.45 g/mol) for analytical method development and quality control.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (4R,4′R)-2,2′-(1,3-Phenylene)bis[4-(1,1-dimethylethyl)-4,5-dihydrooxazole] is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 328.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC20H28N2O2
Molecular Weight328.45 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2002
Nitrogen Atoms2

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