Ligstroside

Oleuropein

Names
IUPAC name (4S,5E,6S)-4-[2-[2-(3,4-dihydroxyphenyl)ethoxy]-2-oxoethyl]- 5-ethylidene-6-[[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)- 2-tetrahydropyranyl]oxy]-4H-pyran-3-carboxylic acid, methyl ester
Identifiers
CAS Number	32619-42-4 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL1911053 N
ChemSpider	4444876 Y
ECHA InfoCard	100.046.466
PubChem CID	5281544
InChI InChI=1S/C25H32O13/c1-3-13-14(9-19(29)35-7-6-12-4-5-16(27)17(28)8-12)15(23(33)34-2)11-36-24(13)38-25-22(32)21(31)20(30)18(10-26)37-25/h3-5,8,11,14,18,20-22,24-28,30-32H,6-7,9-10H2,1-2H3/b13-3+/t14-,18+,20+,21-,22+,24-,25-/m0/s1 Y Key: RFWGABANNQMHMZ-ZCHJGGQASA-N Y InChI=1/C25H32O13/c1-3-13-14(9-19(29)35-7-6-12-4-5-16(27)17(28)8-12)15(23(33)34-2)11-36-24(13)38-25-22(32)21(31)20(30)18(10-26)37-25/h3-5,8,11,14,18,20-22,24-28,30-32H,6-7,9-10H2,1-2H3/b13-3+/t14-,18+,20+,21-,22+,24-,25-/m0/s1 Key: RFWGABANNQMHMZ-ZCHJGGQABE
SMILES O=C(OCCc1ccc(O)c(O)c1)C[C@H]2C(=C/C)\[C@@H](O\C=C2\C(=O)OC)O[C@@H]3O[C@@H]([C@@H](O)[C@H](O)[C@H]3O)CO
Properties
Chemical formula	C25H32O13
Molar mass	540.51 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Oleuropein is a glycosylated seco-iridoid, a type of phenolic bitter compound found in green olives, olive leaves, and argan oil. During processing of inedible green olives for human consumption as table olives, oleuropein is removed from olives by immersion in lye.

In preliminary laboratory research, oleuropein had activity as an agonist of the G-protein estrogen receptor. Other basic research is examining whether oleuropein and other olive polyphenols have pharmacological properties and potential anti-disease activity, none of which is proved to exist in humans as of 2017.