(3aR,4S,5R,6aS)-4-(((tert-Butyldimethylsilyl)oxy)methyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate CAS 64982-34-9

Purity 97%+In StockPharmaceutical Standards
CAS No.64982-34-9
Molecular FormulaC21H30O5Si
Molecular Weight390.55 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3aR,4S,5R,6aS)-4-(((tert-Butyldimethylsilyl)oxy)methyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate CAS 64982-34-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 390.55 g/mol gives (3aR,4S,5R,6aS)-4-(((tert-Butyldimethylsilyl)oxy)methyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(3aR,4S,5R,6aS)-4-(((tert-Butyldimethylsilyl)oxy)methyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate (CAS 64982-34-9), molecular formula C21H30O5Si and molecular weight 390.55 g/mol, is a CATO reference standard with documented purity and traceability.

(3aR,4S,5R,6aS)-4-(((tert-Butyldimethylsilyl)oxy)methyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate (C21H30O5Si) contains a flavonoid core, 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).

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 FormulaC21H30O5Si
Molecular Weight390.55 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1975

Recommended Standards

Why CATO?