Capsanthin

Capsanthin
Names
	IUPAC name (2E,4E,6E,8E,10E,12E,14E,16E,18E)-19-[(4R)-4-Hydroxy-2,6,6-trimethylcyclohexen-1-yl]-1-[(1R,4S)-4-hydroxy-1,2,2-trimethylcyclopentyl]-4,8,13,17-tetramethylnonadeca-2,4,6,8,10,12,14,16,18-nonaen-1-one
	Other names (3R,3′S,5′R)-3,3′-Dihydroxy-β,κ-caroten-6′-one
Identifiers
CAS Number	465-42-9;
3D model (JSmol)	Interactive image;
Beilstein Reference	2493991
ChEBI	CHEBI:3375;
ChEMBL	ChEMBL1519371;
ChemSpider	4444640;
ECHA InfoCard	100.006.696
EC Number	207-364-1;
E number	E160c(i) (colours)
KEGG	C08584;
PubChem CID	5281228;
UNII	420NY1J57N;
CompTox Dashboard (EPA)	DTXSID10905012 ;
	InChI InChI=1S/C40H56O3/c1-29(17-13-19-31(3)21-23-36-33(5)25-34(41)26-38(36,6)7)15-11-12-16-30(2)18-14-20-32(4)22-24-37(43)40(10)28-35(42)27-39(40,8)9/h11-24,34-35,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t34-,35+,40+/m1/s1 Key: VYIRVAXUEZSDNC-RDJLEWNRSA-N;
	SMILES CC1=C(C(C[C@@H](C1)O)(C)C)/C=C/C(=C/C=C/C(=C/C=C/C=C(\C)/C=C/C=C(\C)/C=C/C(=O)[C@@]2(C[C@H](CC2(C)C)O)C)/C)/C;
Properties
Chemical formula	C40H56O3
Molar mass	584.885 g·mol−1
Appearance	Deep red solid
Melting point	181–182 °C (358–360 °F; 454–455 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Capsanthin is a natural red dye of the xanthophyll class. As a food coloring, it has the E number E160c(i). Capsanthin is the main carotenoid in red bell pepper (Capsicum annuum) and a component of paprika oleoresin.^[1]

References

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