(3R,4R,5R)-3,5-Bis(3,4,5-trihydroxyphenylcarbonyloxy)-4-hydroxycyclohex-1-enecarboxylic acid (3R,4S,5R)-4-hydroxy-3,5-bis[(3,4,5-trihydroxybenzoyl)oxy]cyclohexene-1-carboxylic acid 3,5-Di-O-galloylshikimic acid 95753-52-9 Benzoic acid, 3,4,5-trihydroxy-, (1R,2S,3R)-5-carboxy-2-hydroxy-4-cyclohexene-1,3-diyl ester GN-11 CAS 95753-52-9

Purity 97%+In StockPharmaceutical Standards
CAS No.95753-52-9
Molecular FormulaC21H30O13
Molecular Weight490.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3R,4R,5R)-3,5-Bis(3,4,5-trihydroxyphenylcarbonyloxy)-4-hydroxycyclohex-1-enecarboxylic acid (3R,4S,5R)-4-hydroxy-3,5-bis[(3,4,5-trihydroxybenzoyl)oxy]cyclohexene-1-carboxylic acid 3,5-Di-O-galloylshikimic acid 95753-52-9 Benzoic acid, 3,4,5-trihydroxy-, (1R,2S,3R)-5-carboxy-2-hydroxy-4-cyclohexene-1,3-diyl ester GN-11 CAS 95753-52-9 chemical structure

Description

Structurally, (3R,4R,5R)-3,5-Bis(3,4,5-trihydroxyphenylcarbonyloxy)-4-hydroxycyclohex-1-enecarboxylic acid (3R,4S,5R)-4-hydroxy-3,5-bis[(3,4,5-trihydroxybenzoyl)oxy]cyclohexene-1-carboxylic acid 3,5-Di-O-galloylshikimic acid 95753-52-9 Benzoic acid, 3,4,5-trihydroxy-, (1R,2S,3R)-5-carboxy-2-hydroxy-4-cyclohexene-1,3-diyl ester GN-11 (C21H30O13) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 490.46 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).

(3R,4R,5R)-3,5-Bis(3,4,5-trihydroxyphenylcarbonyloxy)-4-hydroxycyclohex-1-enecarboxylic acid (3R,4S,5R)-4-hydroxy-3,5-bis[(3,4,5-trihydroxybenzoyl)oxy]cyclohexene-1-carboxylic acid 3,5-Di-O-galloylshikimic acid 95753-52-9 Benzoic acid, 3,4,5-trihydroxy-, (1R,2S,3R)-5-carboxy-2-hydroxy-4-cyclohexene-1,3-diyl ester GN-11 (CAS 95753-52-9) is a high-purity analytical reference standard with the molecular formula C21H30O13 and a molecular weight of 490.46 g/mol.

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.

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 FormulaC21H30O13
Molecular Weight490.46 g/mol
AppearanceOff-white to pale 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984

Recommended Standards

Why CATO?