(2R,3S,5R,6R,7R,8R)-2-Hydroxy-12-isopropenyl-7-methyl-11-oxospiro[4,10-dioxatetracyclo[7.2.1.02,7.03,5]dodecane-6,2\'-oxiran]-8-yl acetate 2749-28-2 CAS 2749-28-2

Purity 97%+In StockPharmaceutical Standards
CAS No.2749-28-2
Molecular FormulaC17H20O7
Molecular Weight336.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2R,3S,5R,6R,7R,8R)-2-Hydroxy-12-isopropenyl-7-methyl-11-oxospiro[4,10-dioxatetracyclo[7.2.1.02,7.03,5]dodecane-6,2\'-oxiran]-8-yl acetate 2749-28-2 CAS 2749-28-2 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.

(2R,3S,5R,6R,7R,8R)-2-Hydroxy-12-isopropenyl-7-methyl-11-oxospiro[4,10-dioxatetracyclo[7.2.1.02,7.03,5]dodecane-6,2\'-oxiran]-8-yl acetate 2749-28-2 (CAS 2749-28-2) is a high-purity analytical reference standard with the molecular formula C17H20O7 and a molecular weight of 336.34 g/mol.

Structurally, (2R,3S,5R,6R,7R,8R)-2-Hydroxy-12-isopropenyl-7-methyl-11-oxospiro[4,10-dioxatetracyclo[7.2.1.02,7.03,5]dodecane-6,2\'-oxiran]-8-yl acetate 2749-28-2 (C17H20O7) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 336.34 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).

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 FormulaC17H20O7
Molecular Weight336.34 g/mol
AppearancePale yellow to 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Recommended Standards

Why CATO?