(2R,3S,4S,5R,6S)-2-(acetoxymethyl)-4-(allyloxy)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,5-diyl diacetate CAS 343254-39-7

Purity 97%+In StockPharmaceutical Standards
CAS No.343254-39-7
Molecular FormulaC22H28O10
Molecular Weight452.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2R,3S,4S,5R,6S)-2-(acetoxymethyl)-4-(allyloxy)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,5-diyl diacetate CAS 343254-39-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 452.45 g/mol gives (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-4-(allyloxy)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,5-diyl diacetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(2R,3S,4S,5R,6S)-2-(acetoxymethyl)-4-(allyloxy)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,5-diyl diacetate (CAS 343254-39-7) is a high-purity analytical reference standard with the molecular formula C22H28O10 and a molecular weight of 452.45 g/mol.

Based on its molecular formula C22H28O10, (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-4-(allyloxy)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,5-diyl diacetate contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 452.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC22H28O10
Molecular Weight452.45 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025

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