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Lycopene (data page)

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This page provides supplementary chemical data on lycopene.

Material Safety Data Sheet

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The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.

Structure and properties

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All-trans-lycopene with canonical numbering:

Several common geometric isomers of lycopene.[1][2] In total, there are 72 possible isomers of lycopene (sterically hindered isomers not included).
Structure and properties
Index of refraction, nD ?
Dielectric constant, εr ? ε0 at ? °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?

Spectral data

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To date, no X-ray crystal structure of lycopene has been reported.

UV spectra of lycopene in hexane. A typical carotenoid, lycopene displays three absorbance maxima. A peak at 360 nm would indicate the presence of certain cis-isomers
UV-Vis
λmax 443, 471, 502 nm in hexane
Extinction coefficient, ε 1.72 × 105 L•mol−1•cm−1(at 502 nm)[3]
IR
Major absorption bands ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments
 
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References

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  1. ^ Chasse, Gregory A.; Mak, Melody L.; Deretey, Eugen; Farkas, Imre; Torday, Ladislaus L.; Papp, Julius G.; Sarma, Dittakavi S.R; Agarwal, Anita; Chakravarthi, Sujatha; Agarwal, Sanjiv; Rao, A.Venket (2001). "An ab initio computational study on selected lycopene isomers". Journal of Molecular Structure: Theochem. 571 (1–3): 27–37. doi:10.1016/S0166-1280(01)00424-9.
  2. ^ Chasse, Gregory A.; Chasse, Kenneth P.; Kucsman, Arpad; Torday, Ladislaus L.; Papp, Julius G. (2001). "Conformational potential energy surfaces of a Lycopene model". Journal of Molecular Structure: Theochem. 571 (1–3): 7–26. doi:10.1016/S0166-1280(01)00413-4.
  3. ^ For hexane:CH2Cl2 98:2 v/v