82203-13-2

Upstream product

• 186581-53-3 diazomethane 
• 83011-43-2 3-hydroxy-4,5-dimethoxybenzoate 
• 1968-71-4 methyl 2-bromo-3,4,5-trimethoxybenzoate 
• 82220-66-4 dimethyl penta-O-methyl-m-dehydrodigallate 
• 82203-12-1 sanguisorbic acid dilactone heptamethyl ether 
• 77-78-1 dimethyl sulfate 

Relevant academic research and scientific papers

Tannins and Related Compounds. Part 3. A New Phenolic Acid, Sanguisorbic Acid Dilactone, and Three New Ellagitannins, Sanguiins H-1, H-2, and H-3, from Sanguisorba officinalis

A new phenolic acid, sanguisorbic acid dilactone, and three new ellagitannins, sanguiins H-1, H-2, and H-3, have been isolated from the underground parts of Sanguisorba officinalis L. (Rosaceae).On the basis of chemical and spectroscopic evidence, sanguisorbic acid dilactone has been shown to possess a trimeric gallic acid structure and to be a structural isomer of valoneaic acid dilactone.Similarly, sanguiins H-1 and H-2 have been characterized as 1,6-digalloyl-2,3-(4,4',5,5',6,6'-hexahydroxydiphenoyl)glucose and 1-galloyl-2,4-(4,4',5,5',6,6'-hexahydroxydiphenoyl)-3,6-sanguisorboylglucose, respectively.Sanguiin H-3 has been shown mainly by spectroscopic data and analyses of partial hydrolysates to have a novel dimeric structure containing 2,3-(hexahydroxydiphenoyl)glucose and sanguiin H-2 moieties.