5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one CAS 158642-42-3

Purity 97%+In StockPharmaceutical Standards
CAS No.158642-42-3
Molecular FormulaC23H24O12
Molecular Weight492.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one CAS 158642-42-3 chemical structure

Description

Structurally, 5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one (C23H24O12) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 492.43 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one (CAS 158642-42-3) is a high-purity analytical reference standard with the molecular formula C23H24O12 and a molecular weight of 492.43 g/mol.

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), 5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one 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 FormulaC23H24O12
Molecular Weight492.43 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2002

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