Fucoxanthin

Fucoxanthin
Names
	IUPAC name (3S,5R,6M,3′S,5′R,6′S)-5′,6′-Epoxy-5,3′-dihydroxy-8′-oxo-6,7-didehydro-5,6,5′,6′,7′,8′-hexahydro-β,β-caroten-3-yl acetate
	Systematic IUPAC name (1S,3R,4M)-3-Hydroxy-4-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-17-oxooctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-ylidene}-3,5,5-trimethylcyclohexyl acetate
Identifiers
CAS Number	3351-86-8 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	6580822
ChEBI	CHEBI:5186;
ChEMBL	ChEMBL1575074;
ChemSpider	21864745 ;
ECHA InfoCard	100.212.315
EC Number	686-524-6;
KEGG	C08596;
PubChem CID	5281239;
UNII	06O0TC0VSM ;
CompTox Dashboard (EPA)	DTXSID901031617 ;
	InChI InChI=1S/C42H58O6/c1-29(18-14-19-31(3)22-23-37-38(6,7)26-35(47-33(5)43)27-40(37,10)46)16-12-13-17-30(2)20-15-21-32(4)36(45)28-42-39(8,9)24-34(44)25-41(42,11)48-42/h12-22,34-35,44,46H,24-28H2,1-11H3/b13-12+,18-14+,20-15+,29-16+,30-17+,31-19+,32-21+/t23-,34-,35-,40+,41+,42-/m0/s1 Key: SJWWTRQNNRNTPU-XJUZQKKNSA-N ; InChI=1/C42H58O6/c1-29(18-14-19-31(3)22-23-37-38(6,7)26-35(47-33(5)43)27-40(37,10)46)16-12-13-17-30(2)20-15-21-32(4)36(45)28-42-39(8,9)24-34(44)25-41(42,11)48-42/h12-22,34-35,44,46H,24-28H2,1-11H3/b13-12+,18-14+,20-15+,29-16+,30-17+,31-19+,32-21+/t23-,34-,35-,40+,41+,42-/m0/s1 Key: SJWWTRQNNRNTPU-XJUZQKKNBP;
	SMILES CC(=CC=CC=C(C)C=CC=C(C)C(=O)CC12C(CC(CC1(O2)C)O)(C)C)C=CC=C(C)C=C=C3C(CC(CC3(C)O)OC(=O)C)(C)C;
Properties
Chemical formula	C42H58O6
Molar mass	658.920 g·mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264, P280, P305+P351+P338, P337+P313
	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

Fucoxanthin is a xanthophyll, with formula C₄₂H₅₈O₆. It is found as an accessory pigment in the chloroplasts of brown algae and most other heterokonts, giving them a brown or olive-green color. Fucoxanthin absorbs light primarily in the blue-green to yellow-green part of the visible spectrum, peaking at around 510–525 nm by various estimates and absorbing significantly in the range of 450 to 540 nm.