(E)-4-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-methylisoxazolidin-3-one CAS 127245-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.127245-20-9
Molecular FormulaC19H27NO3
Molecular Weight317.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-4-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-methylisoxazolidin-3-one CAS 127245-20-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 317.42 g/mol gives (E)-4-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-methylisoxazolidin-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(E)-4-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-methylisoxazolidin-3-one (CAS 127245-20-9) is a high-purity analytical reference standard with the molecular formula C19H27NO3 and a molecular weight of 317.42 g/mol.

Structurally, (E)-4-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-methylisoxazolidin-3-one (C19H27NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 317.42 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).

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.

CATO manufactures (E)-4-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-methylisoxazolidin-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC19H27NO3
Molecular Weight317.42 g/mol
AppearanceOff-white to pale 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
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993
Nitrogen Atoms1

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