(3aR,5 inverted exclamation markaS,7aR)-3 inverted exclamation marka-(4-Ethylphenyl)-dihydro-2,2-dimethyl-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 879880-79-2 Shi Epoxidation Oxazolidinone Ethyl Catalyst CAS 879880-79-2

Purity 97%+In StockPharmaceutical Standards
CAS No.879880-79-2
Molecular FormulaC18H27NO6
Molecular Weight353.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3aR,5 inverted exclamation markaS,7aR)-3 inverted exclamation marka-(4-Ethylphenyl)-dihydro-2,2-dimethyl-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 879880-79-2 Shi Epoxidation Oxazolidinone Ethyl Catalyst CAS 879880-79-2 chemical structure

Description

(3aR,5 inverted exclamation markaS,7aR)-3 inverted exclamation marka-(4-Ethylphenyl)-dihydro-2,2-dimethyl-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 879880-79-2 Shi Epoxidation Oxazolidinone Ethyl Catalyst (C18H27NO6) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

(3aR,5 inverted exclamation markaS,7aR)-3 inverted exclamation marka-(4-Ethylphenyl)-dihydro-2,2-dimethyl-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 879880-79-2 Shi Epoxidation Oxazolidinone Ethyl Catalyst (CAS 879880-79-2), molecular formula C18H27NO6 and molecular weight 353.41 g/mol, is a CATO reference standard with documented purity and traceability.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), (3aR,5 inverted exclamation markaS,7aR)-3 inverted exclamation marka-(4-Ethylphenyl)-dihydro-2,2-dimethyl-spiro[6H-1,3-dioxolo[4,5-c]pyran-6,5 inverted exclamation marka-oxazolidine]-2 inverted exclamation marka,7(4H)-dione 879880-79-2 Shi Epoxidation Oxazolidinone Ethyl Catalyst meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC18H27NO6
Molecular Weight353.41 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.)1987
Nitrogen Atoms1

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