Contents

Peridinin

Peridinin

Names
IUPAC name Acetic acid [(1S,3R)-3-hydroxy-4-[(3E,5E,7E,9E,11Z)-11-[4-[(E)-2-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]vinyl]-5-oxo-2-furylidene]-3,10-dimethylundeca-1,3,5,7,9-pentaenylidene]-3,5,5-trimethylcyclohexyl] ester
Identifiers
CAS Number	33281-81-1 Y
3D model (JSmol)	Interactive image
PubChem CID	5289155
CompTox Dashboard (EPA)	DTXSID20903948
SMILES [H][C@@](/[C@@](C)=C/C=C/C=C/C=C(C)/C=C2C=C(/C=C/[C@@]3(O4)[C@]4(C)C[C@@H](O)CC(C)3C)C(O\2)=O)=C=C1[C@](C)(O)C[C@@H](OC(C)=O)CC(C)1C
Properties
Chemical formula	C39H50O7
Molar mass	630.822 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Chemical compound

Peridinin is a light-harvesting apocarotenoid, a pigment associated with chlorophyll and found in the peridinin-chlorophyll-protein (PCP) light-harvesting complexindinoflagellates, best studied in Amphidinium carterae.^[1]

Peridinin is an apocarotenoid pigment that some organisms use in photosynthesis. Many photosynthetic dinoflagellates use peridinin, which absorbs blue-green light in the 470-550nm range, outside the range accessible to chlorophyll molecules. The peridinin-chlorophyll-protein complex is a specialized molecular complex consisting of a boat-shaped protein molecule with a large central cavity that contains peridinin, chlorophyll, and lipid molecules, usually in a 4:1 ratio of peridinin to chlorophyll.^[2][3][4]

• Absorption maximum: 483 nm
• Emission maximum: 676 nm
• Extinction coefficient (ε): 1.96 x 10⁶M⁻¹cm⁻¹
• A₄₈₃/A₂₈₀ ≥ 4.6

Peridinin chlorophyll (PerCP) is commonly used in immunoassays such as fluorescence-activated cell sorting (FACS) and flow cytometry. The fluorophore is covalently linked to proteins or antibodies for use in research applications.^[5]