2-(4-(tert-Butyl)phenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole CAS 445220-81-5

Purity 97%+In StockPharmaceutical Standards
CAS No.445220-81-5
Molecular FormulaC20H18N2O
Molecular Weight302.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(4-(tert-Butyl)phenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole CAS 445220-81-5 chemical structure

Description

The occurrence of 2-(4-(tert-Butyl)phenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-(4-(tert-Butyl)phenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole (CAS 445220-81-5) is a high-purity analytical reference standard with the molecular formula C20H18N2O and a molecular weight of 302.37 g/mol.

2-(4-(tert-Butyl)phenyl)-5-(4-ethynylphenyl)-1,3,4-oxadiazole (C20H18N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC20H18N2O
Molecular Weight302.37 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2

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