(3aR,5 inverted exclamation markaS,7aR)-Dihydro-2,2-dimethyl-3 inverted exclamation marka-(4-methylphenyl)-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 403501-30-4 Shi Epoxidation Oxazolidinone Methyl Catalyst CAS 403501-30-4

Purity 97%+In StockPharmaceutical Standards
CAS No.403501-30-4
Molecular FormulaC17H25NO6
Molecular Weight339.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3aR,5 inverted exclamation markaS,7aR)-Dihydro-2,2-dimethyl-3 inverted exclamation marka-(4-methylphenyl)-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 403501-30-4 Shi Epoxidation Oxazolidinone Methyl Catalyst CAS 403501-30-4 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.

(3aR,5 inverted exclamation markaS,7aR)-Dihydro-2,2-dimethyl-3 inverted exclamation marka-(4-methylphenyl)-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 403501-30-4 Shi Epoxidation Oxazolidinone Methyl Catalyst (CAS 403501-30-4) is a high-purity analytical reference standard with the molecular formula C17H25NO6 and a molecular weight of 339.38 g/mol.

The molecular framework of (3aR,5 inverted exclamation markaS,7aR)-Dihydro-2,2-dimethyl-3 inverted exclamation marka-(4-methylphenyl)-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 403501-30-4 Shi Epoxidation Oxazolidinone Methyl Catalyst (C17H25NO6) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC17H25NO6
Molecular Weight339.38 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 methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1

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