Marein

Marein
Names
	IUPAC name 4′-(β-D-Glucopyranosyloxy)-2′,3,3′,4-tetrahydroxychalcone
	Systematic IUPAC name 2′,3,3′,4-Tetrahydroxy-4′-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chalcone
	Other names Okanin-4'-O-glucoside
Identifiers
CAS Number	535-96-6 =; 197164-34-4 (non-specific) ;
3D model (JSmol)	Interactive image ;
ChEBI	CHEBI:179868 ;
ChEMBL	ChEMBL490510 ;
ChemSpider	4945457 ;
ECHA InfoCard	100.007.841
EC Number	208-623-1;
PubChem CID	6441269 ;
UNII	CY787E65J4 ;
CompTox Dashboard (EPA)	DTXSID601029273 ;
	InChI InChI=1S/C21H22O11/c22-8-15-18(28)19(29)20(30)21(32-15)31-14-6-3-10(16(26)17(14)27)11(23)4-1-9-2-5-12(24)13(25)7-9/h1-7,15,18-22,24-30H,8H2/b4-1+/t15-,18-,19+,20-,21-/m1/s1 Key: XGEYXJDOVMEJNG-HTFDPZBKSA-N;
	SMILES C1=CC(=C(C=C1C=CC(=O)C2=C(C(=C(C=C2)OC3C(C(C(C(O3)CO)O)O)O)O)O)O)O;
Properties
Chemical formula	C21H22O11
Molar mass	450.39 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Last updated September 14, 2025

Marein is a chalconoid, a type of natural phenol.^[1] It is the 4'-O-glucoside of okanin. It can be found in Coreopsis maritima .^[2] It is an anthochlor pigment, a kind of yellow pigment.^[3]

References

↑ "Marein on metabolomics.jp".
↑ Harborne, J. B.; Geissman, T. A. (February 1956). "Anthochlor Pigments. XII. Maritimein and Marein". Journal of the American Chemical Society. 78 (4): 829–832. Bibcode:1956JAChS..78..829H. doi:10.1021/ja01585a033.
↑ Anthochlor pigment on botanydictionary.org

External links

Marein spectral data on www.massbank.jp

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[1] "Marein on metabolomics.jp".

[2] Harborne, J. B.; Geissman, T. A. (February 1956). "Anthochlor Pigments. XII. Maritimein and Marein". Journal of the American Chemical Society. 78 (4): 829–832. Bibcode:1956JAChS..78..829H. doi:10.1021/ja01585a033.

[3] Anthochlor pigment on botanydictionary.org

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[2]

[3]

v t e Chalconoids and their glycosides
Chalconoids	Butein Isoliquiritigenin Methyl hydroxychalcone Okanin
Chalconoid glycosides	Carthamin Marein okanin 3,4,3′-trimethyl ether 4′-glucoside okanin 4-methyl ether 4′-glucoside okanin 4-methyl ether 4′-glucoside monoacetate Okanin 3,4-dimethyl ether 4′-glucoside
Acylated chalconoids	Licochalcone A Sophoradin (prenylated) Tephrospinosin (3′,5′-diisopentenyl-2′,4′-dihydroxychalcone) (prenylated) Xanthohumol (prenylated)
O-methylated chalconoids	Cardamomin Flavokawin B Okanin 3,4,3′,4′-tetramethyl ether Pashanone (2',6'-Dihydroxy-3',4'-dimethoxychalcone)
Flavokavains	Flavokavain A Flavokavain B Flavokavain C
Synthetic	Sofalcone

Names

IUPAC name 4′-(β-D-Glucopyranosyloxy)-2′,3,3′,4-tetrahydroxychalcone
Systematic IUPAC name 2′,3,3′,4-Tetrahydroxy-4′-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chalcone
Other names Okanin-4'-O-glucoside
Identifiers
CAS Number	535-96-6 ^Y= 197164-34-4 (non-specific)^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:179868
ChEMBL	ChEMBL490510
ChemSpider	4945457 ^N
ECHA InfoCard	100.007.841
EC Number	208-623-1
PubChem CID	6441269
UNII	CY787E65J4 ^Y
CompTox Dashboard (EPA)	DTXSID601029273
InChI InChI=1S/C21H22O11/c22-8-15-18(28)19(29)20(30)21(32-15)31-14-6-3-10(16(26)17(14)27)11(23)4-1-9-2-5-12(24)13(25)7-9/h1-7,15,18-22,24-30H,8H2/b4-1+/t15-,18-,19+,20-,21-/m1/s1 Key: XGEYXJDOVMEJNG-HTFDPZBKSA-N
SMILES C1=CC(=C(C=C1C=CC(=O)C2=C(C(=C(C=C2)OC3C(C(C(C(O3)CO)O)O)O)O)O)O)O
Properties
Chemical formula	C₂₁H₂₂O₁₁
Molar mass	450.39 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references