(1R,2E,7R,8E,10R,12R,13S,17R)-7-[(2R,4R,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-17-hydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4,6-dimethyl-7-oxononan-2-yl]-2,10,12,20-tetramethyl-14,21-dioxabicyclo[15.3.1]henicosa-2,8,19-trien-15-one 33538-72-6 CAS 33538-72-6

Purity 97%+In StockPharmaceutical Standards
CAS No.33538-72-6
Molecular FormulaC40H66O10
Molecular Weight706.95 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1R,2E,7R,8E,10R,12R,13S,17R)-7-[(2R,4R,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-17-hydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4,6-dimethyl-7-oxononan-2-yl]-2,10,12,20-tetramethyl-14,21-dioxabicyclo[15.3.1]henicosa-2,8,19-trien-15-one 33538-72-6 CAS 33538-72-6 chemical structure

Description

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.

(1R,2E,7R,8E,10R,12R,13S,17R)-7-[(2R,4R,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-17-hydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4,6-dimethyl-7-oxononan-2-yl]-2,10,12,20-tetramethyl-14,21-dioxabicyclo[15.3.1]henicosa-2,8,19-trien-15-one 33538-72-6 (CAS 33538-72-6) is a high-purity analytical reference standard with the molecular formula C40H66O10 and a molecular weight of 706.95 g/mol.

The molecular framework of (1R,2E,7R,8E,10R,12R,13S,17R)-7-[(2R,4R,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-17-hydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4,6-dimethyl-7-oxononan-2-yl]-2,10,12,20-tetramethyl-14,21-dioxabicyclo[15.3.1]henicosa-2,8,19-trien-15-one 33538-72-6 (C40H66O10) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC40H66O10
Molecular Weight706.95 g/mol
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966

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